Home / 71,149.47-98,182.40-39,316.31

Finding the Fourth Proportional to 71,149.47, 98,182.40 and 39,316.31

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Solution

The fourth proportional to 71,149.47, 98,182.40 and 39,316.31 is: 54,254.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,149.47 : 98,182.40 = 39,316.31 : x
  2. Step 2: Convert to fraction form
    71,149.47/98,182.40 = 39,316.31/x
  3. Step 3: Cross multiply
    71,149.47x = 98,182.40 × 39,316.31
  4. Step 4: Simplify right side
    71,149.47x = 3,860,169,723.82
  5. Step 5: Solve for x
    x = 3,860,169,723.82/71,149.47
  6. Step 6: Final answer
    x = 54,254.37

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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.