Home / 83,030.90-124,874.40-74,501.60

Finding the Fourth Proportional to 83,030.90, 124,874.40 and 74,501.60

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Solution

The fourth proportional to 83,030.90, 124,874.40 and 74,501.60 is: 112,046.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,030.90 : 124,874.40 = 74,501.60 : x
  2. Step 2: Convert to fraction form
    83,030.90/124,874.40 = 74,501.60/x
  3. Step 3: Cross multiply
    83,030.90x = 124,874.40 × 74,501.60
  4. Step 4: Simplify right side
    83,030.90x = 9,303,342,599.04
  5. Step 5: Solve for x
    x = 9,303,342,599.04/83,030.90
  6. Step 6: Final answer
    x = 112,046.75

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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.