Home / 121,649.50-182,572.54-51,578.02

Finding the Fourth Proportional to 121,649.50, 182,572.54 and 51,578.02

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Solution

The fourth proportional to 121,649.50, 182,572.54 and 51,578.02 is: 77,408.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,649.50 : 182,572.54 = 51,578.02 : x
  2. Step 2: Convert to fraction form
    121,649.50/182,572.54 = 51,578.02/x
  3. Step 3: Cross multiply
    121,649.50x = 182,572.54 × 51,578.02
  4. Step 4: Simplify right side
    121,649.50x = 9,416,730,119.57
  5. Step 5: Solve for x
    x = 9,416,730,119.57/121,649.50
  6. Step 6: Final answer
    x = 77,408.70

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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.