Home / 87,834.88-121,211.32-47,547.60

Finding the Fourth Proportional to 87,834.88, 121,211.32 and 47,547.60

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Solution

The fourth proportional to 87,834.88, 121,211.32 and 47,547.60 is: 65,615.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,834.88 : 121,211.32 = 47,547.60 : x
  2. Step 2: Convert to fraction form
    87,834.88/121,211.32 = 47,547.60/x
  3. Step 3: Cross multiply
    87,834.88x = 121,211.32 × 47,547.60
  4. Step 4: Simplify right side
    87,834.88x = 5,763,307,358.83
  5. Step 5: Solve for x
    x = 5,763,307,358.83/87,834.88
  6. Step 6: Final answer
    x = 65,615.25

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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.