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Finding the Fourth Proportional to 48,468.60, 72,702.90 and 42,442.20

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Solution

The fourth proportional to 48,468.60, 72,702.90 and 42,442.20 is: 63,663.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,468.60 : 72,702.90 = 42,442.20 : x
  2. Step 2: Convert to fraction form
    48,468.60/72,702.90 = 42,442.20/x
  3. Step 3: Cross multiply
    48,468.60x = 72,702.90 × 42,442.20
  4. Step 4: Simplify right side
    48,468.60x = 3,085,671,022.38
  5. Step 5: Solve for x
    x = 3,085,671,022.38/48,468.60
  6. Step 6: Final answer
    x = 63,663.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.