Home / 71,260.55-98,335.45-39,427.55

Finding the Fourth Proportional to 71,260.55, 98,335.45 and 39,427.55

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Solution

The fourth proportional to 71,260.55, 98,335.45 and 39,427.55 is: 54,407.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,260.55 : 98,335.45 = 39,427.55 : x
  2. Step 2: Convert to fraction form
    71,260.55/98,335.45 = 39,427.55/x
  3. Step 3: Cross multiply
    71,260.55x = 98,335.45 × 39,427.55
  4. Step 4: Simplify right side
    71,260.55x = 3,877,125,871.65
  5. Step 5: Solve for x
    x = 3,877,125,871.65/71,260.55
  6. Step 6: Final answer
    x = 54,407.75

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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.