Home / 56,785.16-78,366.99-31,291.53

Finding the Fourth Proportional to 56,785.16, 78,366.99 and 31,291.53

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Solution

The fourth proportional to 56,785.16, 78,366.99 and 31,291.53 is: 43,184.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,785.16 : 78,366.99 = 31,291.53 : x
  2. Step 2: Convert to fraction form
    56,785.16/78,366.99 = 31,291.53/x
  3. Step 3: Cross multiply
    56,785.16x = 78,366.99 × 31,291.53
  4. Step 4: Simplify right side
    56,785.16x = 2,452,222,470.30
  5. Step 5: Solve for x
    x = 2,452,222,470.30/56,785.16
  6. Step 6: Final answer
    x = 43,184.22

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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.