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Finding the Fourth Proportional to 48,648.60, 72,972.90 and 38,807.10

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Solution

The fourth proportional to 48,648.60, 72,972.90 and 38,807.10 is: 58,210.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,648.60 : 72,972.90 = 38,807.10 : x
  2. Step 2: Convert to fraction form
    48,648.60/72,972.90 = 38,807.10/x
  3. Step 3: Cross multiply
    48,648.60x = 72,972.90 × 38,807.10
  4. Step 4: Simplify right side
    48,648.60x = 2,831,866,627.59
  5. Step 5: Solve for x
    x = 2,831,866,627.59/48,648.60
  6. Step 6: Final answer
    x = 58,210.65

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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.