Home / 83,070.20-124,634.10-36,356.60

Finding the Fourth Proportional to 83,070.20, 124,634.10 and 36,356.60

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Solution

The fourth proportional to 83,070.20, 124,634.10 and 36,356.60 is: 54,547.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,070.20 : 124,634.10 = 36,356.60 : x
  2. Step 2: Convert to fraction form
    83,070.20/124,634.10 = 36,356.60/x
  3. Step 3: Cross multiply
    83,070.20x = 124,634.10 × 36,356.60
  4. Step 4: Simplify right side
    83,070.20x = 4,531,272,120.06
  5. Step 5: Solve for x
    x = 4,531,272,120.06/83,070.20
  6. Step 6: Final answer
    x = 54,547.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.