Home / 71,239.48-98,310.54-42,937.72

Finding the Fourth Proportional to 71,239.48, 98,310.54 and 42,937.72

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Solution

The fourth proportional to 71,239.48, 98,310.54 and 42,937.72 is: 59,254.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,239.48 : 98,310.54 = 42,937.72 : x
  2. Step 2: Convert to fraction form
    71,239.48/98,310.54 = 42,937.72/x
  3. Step 3: Cross multiply
    71,239.48x = 98,310.54 × 42,937.72
  4. Step 4: Simplify right side
    71,239.48x = 4,221,230,439.57
  5. Step 5: Solve for x
    x = 4,221,230,439.57/71,239.48
  6. Step 6: Final answer
    x = 59,254.09

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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.