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Finding the Fourth Proportional to 60,445.44, 90,616.32 and 20,977.92

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Solution

The fourth proportional to 60,445.44, 90,616.32 and 20,977.92 is: 31,448.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,445.44 : 90,616.32 = 20,977.92 : x
  2. Step 2: Convert to fraction form
    60,445.44/90,616.32 = 20,977.92/x
  3. Step 3: Cross multiply
    60,445.44x = 90,616.32 × 20,977.92
  4. Step 4: Simplify right side
    60,445.44x = 1,900,941,911.65
  5. Step 5: Solve for x
    x = 1,900,941,911.65/60,445.44
  6. Step 6: Final answer
    x = 31,448.89

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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.