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Finding the Fourth Proportional to 60,491.70, 90,737.55 and 38,330.10

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Solution

The fourth proportional to 60,491.70, 90,737.55 and 38,330.10 is: 57,495.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,491.70 : 90,737.55 = 38,330.10 : x
  2. Step 2: Convert to fraction form
    60,491.70/90,737.55 = 38,330.10/x
  3. Step 3: Cross multiply
    60,491.70x = 90,737.55 × 38,330.10
  4. Step 4: Simplify right side
    60,491.70x = 3,477,979,365.26
  5. Step 5: Solve for x
    x = 3,477,979,365.26/60,491.70
  6. Step 6: Final answer
    x = 57,495.15

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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.