Home / 83,052.40-124,578.60-76,637.20

Finding the Fourth Proportional to 83,052.40, 124,578.60 and 76,637.20

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Solution

The fourth proportional to 83,052.40, 124,578.60 and 76,637.20 is: 114,955.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,052.40 : 124,578.60 = 76,637.20 : x
  2. Step 2: Convert to fraction form
    83,052.40/124,578.60 = 76,637.20/x
  3. Step 3: Cross multiply
    83,052.40x = 124,578.60 × 76,637.20
  4. Step 4: Simplify right side
    83,052.40x = 9,547,355,083.92
  5. Step 5: Solve for x
    x = 9,547,355,083.92/83,052.40
  6. Step 6: Final answer
    x = 114,955.80

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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.