Home / 69,990.78-96,587.38-38,159.58

Finding the Fourth Proportional to 69,990.78, 96,587.38 and 38,159.58

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Solution

The fourth proportional to 69,990.78, 96,587.38 and 38,159.58 is: 52,660.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,990.78 : 96,587.38 = 38,159.58 : x
  2. Step 2: Convert to fraction form
    69,990.78/96,587.38 = 38,159.58/x
  3. Step 3: Cross multiply
    69,990.78x = 96,587.38 × 38,159.58
  4. Step 4: Simplify right side
    69,990.78x = 3,685,733,854.10
  5. Step 5: Solve for x
    x = 3,685,733,854.10/69,990.78
  6. Step 6: Final answer
    x = 52,660.28

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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.