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Finding the Fourth Proportional to 79,110.66, 118,703.64 and 39,695.64

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Solution

The fourth proportional to 79,110.66, 118,703.64 and 39,695.64 is: 59,562.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,110.66 : 118,703.64 = 39,695.64 : x
  2. Step 2: Convert to fraction form
    79,110.66/118,703.64 = 39,695.64/x
  3. Step 3: Cross multiply
    79,110.66x = 118,703.64 × 39,695.64
  4. Step 4: Simplify right side
    79,110.66x = 4,712,016,960.13
  5. Step 5: Solve for x
    x = 4,712,016,960.13/79,110.66
  6. Step 6: Final answer
    x = 59,562.35

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1.5x scale

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.