Home / 70,089.18-96,725.25-39,878.88

Finding the Fourth Proportional to 70,089.18, 96,725.25 and 39,878.88

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Solution

The fourth proportional to 70,089.18, 96,725.25 and 39,878.88 is: 55,034.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,089.18 : 96,725.25 = 39,878.88 : x
  2. Step 2: Convert to fraction form
    70,089.18/96,725.25 = 39,878.88/x
  3. Step 3: Cross multiply
    70,089.18x = 96,725.25 × 39,878.88
  4. Step 4: Simplify right side
    70,089.18x = 3,857,294,637.72
  5. Step 5: Solve for x
    x = 3,857,294,637.72/70,089.18
  6. Step 6: Final answer
    x = 55,034.10

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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.