Home / 53,780.44-74,217.72-29,909.20

Finding the Fourth Proportional to 53,780.44, 74,217.72 and 29,909.20

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Solution

The fourth proportional to 53,780.44, 74,217.72 and 29,909.20 is: 41,275.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,780.44 : 74,217.72 = 29,909.20 : x
  2. Step 2: Convert to fraction form
    53,780.44/74,217.72 = 29,909.20/x
  3. Step 3: Cross multiply
    53,780.44x = 74,217.72 × 29,909.20
  4. Step 4: Simplify right side
    53,780.44x = 2,219,792,631.02
  5. Step 5: Solve for x
    x = 2,219,792,631.02/53,780.44
  6. Step 6: Final answer
    x = 41,275.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.