Home / 55,887,719.71-77,125,056.76-31,107,373.11

Finding the Fourth Proportional to 55,887,719.71, 77,125,056.76 and 31,107,373.11

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Solution

The fourth proportional to 55,887,719.71, 77,125,056.76 and 31,107,373.11 is: 42,928,176.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,887,719.71 : 77,125,056.76 = 31,107,373.11 : x
  2. Step 2: Convert to fraction form
    55,887,719.71/77,125,056.76 = 31,107,373.11/x
  3. Step 3: Cross multiply
    55,887,719.71x = 77,125,056.76 × 31,107,373.11
  4. Step 4: Simplify right side
    55,887,719.71x = 2,399,157,916,396,260
  5. Step 5: Solve for x
    x = 2,399,157,916,396,260/55,887,719.71
  6. Step 6: Final answer
    x = 42,928,176.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.