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Finding the Fourth Proportional to 63,382.40, 87,510.48 and 56,646.44

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Solution

The fourth proportional to 63,382.40, 87,510.48 and 56,646.44 is: 78,210.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,382.40 : 87,510.48 = 56,646.44 : x
  2. Step 2: Convert to fraction form
    63,382.40/87,510.48 = 56,646.44/x
  3. Step 3: Cross multiply
    63,382.40x = 87,510.48 × 56,646.44
  4. Step 4: Simplify right side
    63,382.40x = 4,957,157,154.69
  5. Step 5: Solve for x
    x = 4,957,157,154.69/63,382.40
  6. Step 6: Final answer
    x = 78,210.31

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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.