Home / 56,000.40-77,280.52-30,849.90

Finding the Fourth Proportional to 56,000.40, 77,280.52 and 30,849.90

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Solution

The fourth proportional to 56,000.40, 77,280.52 and 30,849.90 is: 42,572.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,000.40 : 77,280.52 = 30,849.90 : x
  2. Step 2: Convert to fraction form
    56,000.40/77,280.52 = 30,849.90/x
  3. Step 3: Cross multiply
    56,000.40x = 77,280.52 × 30,849.90
  4. Step 4: Simplify right side
    56,000.40x = 2,384,096,236.82
  5. Step 5: Solve for x
    x = 2,384,096,236.82/56,000.40
  6. Step 6: Final answer
    x = 42,572.84

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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.