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Finding the Fourth Proportional to 60,246.72, 90,370.80 and 28,660.14

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Solution

The fourth proportional to 60,246.72, 90,370.80 and 28,660.14 is: 42,990.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,246.72 : 90,370.80 = 28,660.14 : x
  2. Step 2: Convert to fraction form
    60,246.72/90,370.80 = 28,660.14/x
  3. Step 3: Cross multiply
    60,246.72x = 90,370.80 × 28,660.14
  4. Step 4: Simplify right side
    60,246.72x = 2,590,039,779.91
  5. Step 5: Solve for x
    x = 2,590,039,779.91/60,246.72
  6. Step 6: Final answer
    x = 42,990.55

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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.