Home / 56,579.68-78,080.18-31,088.11

Finding the Fourth Proportional to 56,579.68, 78,080.18 and 31,088.11

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Solution

The fourth proportional to 56,579.68, 78,080.18 and 31,088.11 is: 42,901.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,579.68 : 78,080.18 = 31,088.11 : x
  2. Step 2: Convert to fraction form
    56,579.68/78,080.18 = 31,088.11/x
  3. Step 3: Cross multiply
    56,579.68x = 78,080.18 × 31,088.11
  4. Step 4: Simplify right side
    56,579.68x = 2,427,365,224.66
  5. Step 5: Solve for x
    x = 2,427,365,224.66/56,579.68
  6. Step 6: Final answer
    x = 42,901.71

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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.