Home / 56,000.65-77,280.86-30,850.15

Finding the Fourth Proportional to 56,000.65, 77,280.86 and 30,850.15

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Solution

The fourth proportional to 56,000.65, 77,280.86 and 30,850.15 is: 42,573.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,000.65 : 77,280.86 = 30,850.15 : x
  2. Step 2: Convert to fraction form
    56,000.65/77,280.86 = 30,850.15/x
  3. Step 3: Cross multiply
    56,000.65x = 77,280.86 × 30,850.15
  4. Step 4: Simplify right side
    56,000.65x = 2,384,126,123.13
  5. Step 5: Solve for x
    x = 2,384,126,123.13/56,000.65
  6. Step 6: Final answer
    x = 42,573.19

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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.