Home / 70,910.20-97,856.67-39,079.18

Finding the Fourth Proportional to 70,910.20, 97,856.67 and 39,079.18

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Solution

The fourth proportional to 70,910.20, 97,856.67 and 39,079.18 is: 53,929.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,910.20 : 97,856.67 = 39,079.18 : x
  2. Step 2: Convert to fraction form
    70,910.20/97,856.67 = 39,079.18/x
  3. Step 3: Cross multiply
    70,910.20x = 97,856.67 × 39,079.18
  4. Step 4: Simplify right side
    70,910.20x = 3,824,158,421.13
  5. Step 5: Solve for x
    x = 3,824,158,421.13/70,910.20
  6. Step 6: Final answer
    x = 53,929.60

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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.