Home / 55,216.29-76,178.47-31,329.13

Finding the Fourth Proportional to 55,216.29, 76,178.47 and 31,329.13

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Solution

The fourth proportional to 55,216.29, 76,178.47 and 31,329.13 is: 43,222.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,216.29 : 76,178.47 = 31,329.13 : x
  2. Step 2: Convert to fraction form
    55,216.29/76,178.47 = 31,329.13/x
  3. Step 3: Cross multiply
    55,216.29x = 76,178.47 × 31,329.13
  4. Step 4: Simplify right side
    55,216.29x = 2,386,604,921.06
  5. Step 5: Solve for x
    x = 2,386,604,921.06/55,216.29
  6. Step 6: Final answer
    x = 43,222.84

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1.5x scale

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.