Home / 56,119.20-77,442.96-30,966.88

Finding the Fourth Proportional to 56,119.20, 77,442.96 and 30,966.88

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Solution

The fourth proportional to 56,119.20, 77,442.96 and 30,966.88 is: 42,733.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,119.20 : 77,442.96 = 30,966.88 : x
  2. Step 2: Convert to fraction form
    56,119.20/77,442.96 = 30,966.88/x
  3. Step 3: Cross multiply
    56,119.20x = 77,442.96 × 30,966.88
  4. Step 4: Simplify right side
    56,119.20x = 2,398,166,849.16
  5. Step 5: Solve for x
    x = 2,398,166,849.16/56,119.20
  6. Step 6: Final answer
    x = 42,733.45

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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.