Home / 56,280.68-77,666.38-31,130.16

Finding the Fourth Proportional to 56,280.68, 77,666.38 and 31,130.16

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Solution

The fourth proportional to 56,280.68, 77,666.38 and 31,130.16 is: 42,959.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,280.68 : 77,666.38 = 31,130.16 : x
  2. Step 2: Convert to fraction form
    56,280.68/77,666.38 = 31,130.16/x
  3. Step 3: Cross multiply
    56,280.68x = 77,666.38 × 31,130.16
  4. Step 4: Simplify right side
    56,280.68x = 2,417,766,836.02
  5. Step 5: Solve for x
    x = 2,417,766,836.02/56,280.68
  6. Step 6: Final answer
    x = 42,959.09

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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.