Home / 70,070.08-96,688.20-39,859.24

Finding the Fourth Proportional to 70,070.08, 96,688.20 and 39,859.24

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Solution

The fourth proportional to 70,070.08, 96,688.20 and 39,859.24 is: 55,000.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,070.08 : 96,688.20 = 39,859.24 : x
  2. Step 2: Convert to fraction form
    70,070.08/96,688.20 = 39,859.24/x
  3. Step 3: Cross multiply
    70,070.08x = 96,688.20 × 39,859.24
  4. Step 4: Simplify right side
    70,070.08x = 3,853,918,168.97
  5. Step 5: Solve for x
    x = 3,853,918,168.97/70,070.08
  6. Step 6: Final answer
    x = 55,000.91

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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.