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Finding the Fourth Proportional to 60,491.12, 90,657.72 and 30,883.92

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Solution

The fourth proportional to 60,491.12, 90,657.72 and 30,883.92 is: 46,285.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,491.12 : 90,657.72 = 30,883.92 : x
  2. Step 2: Convert to fraction form
    60,491.12/90,657.72 = 30,883.92/x
  3. Step 3: Cross multiply
    60,491.12x = 90,657.72 × 30,883.92
  4. Step 4: Simplify right side
    60,491.12x = 2,799,865,771.86
  5. Step 5: Solve for x
    x = 2,799,865,771.86/60,491.12
  6. Step 6: Final answer
    x = 46,285.57

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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.