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Finding the Fourth Proportional to 88,176.65, 121,684.65 and 47,891.20

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Solution

The fourth proportional to 88,176.65, 121,684.65 and 47,891.20 is: 66,090.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,176.65 : 121,684.65 = 47,891.20 : x
  2. Step 2: Convert to fraction form
    88,176.65/121,684.65 = 47,891.20/x
  3. Step 3: Cross multiply
    88,176.65x = 121,684.65 × 47,891.20
  4. Step 4: Simplify right side
    88,176.65x = 5,827,623,301.66
  5. Step 5: Solve for x
    x = 5,827,623,301.66/88,176.65
  6. Step 6: Final answer
    x = 66,090.33

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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.