Home / 56,491.28-77,957.36-30,997.12

Finding the Fourth Proportional to 56,491.28, 77,957.36 and 30,997.12

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Solution

The fourth proportional to 56,491.28, 77,957.36 and 30,997.12 is: 42,775.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,491.28 : 77,957.36 = 30,997.12 : x
  2. Step 2: Convert to fraction form
    56,491.28/77,957.36 = 30,997.12/x
  3. Step 3: Cross multiply
    56,491.28x = 77,957.36 × 30,997.12
  4. Step 4: Simplify right side
    56,491.28x = 2,416,453,642.80
  5. Step 5: Solve for x
    x = 2,416,453,642.80/56,491.28
  6. Step 6: Final answer
    x = 42,775.69

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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.