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Finding the Fourth Proportional to 60,047.92, 90,071.70 and 42,205.12

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Solution

The fourth proportional to 60,047.92, 90,071.70 and 42,205.12 is: 63,307.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,047.92 : 90,071.70 = 42,205.12 : x
  2. Step 2: Convert to fraction form
    60,047.92/90,071.70 = 42,205.12/x
  3. Step 3: Cross multiply
    60,047.92x = 90,071.70 × 42,205.12
  4. Step 4: Simplify right side
    60,047.92x = 3,801,486,907.10
  5. Step 5: Solve for x
    x = 3,801,486,907.10/60,047.92
  6. Step 6: Final answer
    x = 63,307.55

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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.