Home / 56,151.90-77,489.19-30,657.42

Finding the Fourth Proportional to 56,151.90, 77,489.19 and 30,657.42

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Solution

The fourth proportional to 56,151.90, 77,489.19 and 30,657.42 is: 42,307.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,151.90 : 77,489.19 = 30,657.42 : x
  2. Step 2: Convert to fraction form
    56,151.90/77,489.19 = 30,657.42/x
  3. Step 3: Cross multiply
    56,151.90x = 77,489.19 × 30,657.42
  4. Step 4: Simplify right side
    56,151.90x = 2,375,618,643.29
  5. Step 5: Solve for x
    x = 2,375,618,643.29/56,151.90
  6. Step 6: Final answer
    x = 42,307.00

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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.