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Finding the Fourth Proportional to 79,347.66, 109,400.12 and 58,090.02

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Solution

The fourth proportional to 79,347.66, 109,400.12 and 58,090.02 is: 80,091.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,347.66 : 109,400.12 = 58,090.02 : x
  2. Step 2: Convert to fraction form
    79,347.66/109,400.12 = 58,090.02/x
  3. Step 3: Cross multiply
    79,347.66x = 109,400.12 × 58,090.02
  4. Step 4: Simplify right side
    79,347.66x = 6,355,055,158.80
  5. Step 5: Solve for x
    x = 6,355,055,158.80/79,347.66
  6. Step 6: Final answer
    x = 80,091.27

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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.