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Finding the Fourth Proportional to 60,450.68, 90,690.60 and 38,289.08

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Solution

The fourth proportional to 60,450.68, 90,690.60 and 38,289.08 is: 57,442.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,450.68 : 90,690.60 = 38,289.08 : x
  2. Step 2: Convert to fraction form
    60,450.68/90,690.60 = 38,289.08/x
  3. Step 3: Cross multiply
    60,450.68x = 90,690.60 × 38,289.08
  4. Step 4: Simplify right side
    60,450.68x = 3,472,459,638.65
  5. Step 5: Solve for x
    x = 3,472,459,638.65/60,450.68
  6. Step 6: Final answer
    x = 57,442.85

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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.