Home / 89,948.71-124,129.35-49,662.50

Finding the Fourth Proportional to 89,948.71, 124,129.35 and 49,662.50

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Solution

The fourth proportional to 89,948.71, 124,129.35 and 49,662.50 is: 68,534.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,948.71 : 124,129.35 = 49,662.50 : x
  2. Step 2: Convert to fraction form
    89,948.71/124,129.35 = 49,662.50/x
  3. Step 3: Cross multiply
    89,948.71x = 124,129.35 × 49,662.50
  4. Step 4: Simplify right side
    89,948.71x = 6,164,574,154.70
  5. Step 5: Solve for x
    x = 6,164,574,154.70/89,948.71
  6. Step 6: Final answer
    x = 68,534.33

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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.