Home / 87,806.01-121,172.30-47,520.06

Finding the Fourth Proportional to 87,806.01, 121,172.30 and 47,520.06

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Solution

The fourth proportional to 87,806.01, 121,172.30 and 47,520.06 is: 65,577.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,806.01 : 121,172.30 = 47,520.06 : x
  2. Step 2: Convert to fraction form
    87,806.01/121,172.30 = 47,520.06/x
  3. Step 3: Cross multiply
    87,806.01x = 121,172.30 × 47,520.06
  4. Step 4: Simplify right side
    87,806.01x = 5,758,114,728.74
  5. Step 5: Solve for x
    x = 5,758,114,728.74/87,806.01
  6. Step 6: Final answer
    x = 65,577.69

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1.5x scale

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.