Home / 83,051.40-124,577.10-72,683.40

Finding the Fourth Proportional to 83,051.40, 124,577.10 and 72,683.40

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Solution

The fourth proportional to 83,051.40, 124,577.10 and 72,683.40 is: 109,025.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,051.40 : 124,577.10 = 72,683.40 : x
  2. Step 2: Convert to fraction form
    83,051.40/124,577.10 = 72,683.40/x
  3. Step 3: Cross multiply
    83,051.40x = 124,577.10 × 72,683.40
  4. Step 4: Simplify right side
    83,051.40x = 9,054,687,190.14
  5. Step 5: Solve for x
    x = 9,054,687,190.14/83,051.40
  6. Step 6: Final answer
    x = 109,025.10

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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.