Home / 71,248.90-98,323.05-39,417.12

Finding the Fourth Proportional to 71,248.90, 98,323.05 and 39,417.12

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Solution

The fourth proportional to 71,248.90, 98,323.05 and 39,417.12 is: 54,395.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,248.90 : 98,323.05 = 39,417.12 : x
  2. Step 2: Convert to fraction form
    71,248.90/98,323.05 = 39,417.12/x
  3. Step 3: Cross multiply
    71,248.90x = 98,323.05 × 39,417.12
  4. Step 4: Simplify right side
    71,248.90x = 3,875,611,460.62
  5. Step 5: Solve for x
    x = 3,875,611,460.62/71,248.90
  6. Step 6: Final answer
    x = 54,395.39

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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.