Home / 70,407.20-97,158.22-40,191.32

Finding the Fourth Proportional to 70,407.20, 97,158.22 and 40,191.32

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Solution

The fourth proportional to 70,407.20, 97,158.22 and 40,191.32 is: 55,461.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,407.20 : 97,158.22 = 40,191.32 : x
  2. Step 2: Convert to fraction form
    70,407.20/97,158.22 = 40,191.32/x
  3. Step 3: Cross multiply
    70,407.20x = 97,158.22 × 40,191.32
  4. Step 4: Simplify right side
    70,407.20x = 3,904,916,423.90
  5. Step 5: Solve for x
    x = 3,904,916,423.90/70,407.20
  6. Step 6: Final answer
    x = 55,461.89

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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.