Home / 89,863.76-124,012.40-49,577.50

Finding the Fourth Proportional to 89,863.76, 124,012.40 and 49,577.50

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Solution

The fourth proportional to 89,863.76, 124,012.40 and 49,577.50 is: 68,417.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,863.76 : 124,012.40 = 49,577.50 : x
  2. Step 2: Convert to fraction form
    89,863.76/124,012.40 = 49,577.50/x
  3. Step 3: Cross multiply
    89,863.76x = 124,012.40 × 49,577.50
  4. Step 4: Simplify right side
    89,863.76x = 6,148,224,761
  5. Step 5: Solve for x
    x = 6,148,224,761/89,863.76
  6. Step 6: Final answer
    x = 68,417.18

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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.