Home / 89,619.40-134,267.10-52,148.80

Finding the Fourth Proportional to 89,619.40, 134,267.10 and 52,148.80

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Solution

The fourth proportional to 89,619.40, 134,267.10 and 52,148.80 is: 78,128.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,619.40 : 134,267.10 = 52,148.80 : x
  2. Step 2: Convert to fraction form
    89,619.40/134,267.10 = 52,148.80/x
  3. Step 3: Cross multiply
    89,619.40x = 134,267.10 × 52,148.80
  4. Step 4: Simplify right side
    89,619.40x = 7,001,868,144.48
  5. Step 5: Solve for x
    x = 7,001,868,144.48/89,619.40
  6. Step 6: Final answer
    x = 78,128.93

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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.