Home / 70,124.47-96,777.86-39,903.30

Finding the Fourth Proportional to 70,124.47, 96,777.86 and 39,903.30

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Solution

The fourth proportional to 70,124.47, 96,777.86 and 39,903.30 is: 55,070.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,124.47 : 96,777.86 = 39,903.30 : x
  2. Step 2: Convert to fraction form
    70,124.47/96,777.86 = 39,903.30/x
  3. Step 3: Cross multiply
    70,124.47x = 96,777.86 × 39,903.30
  4. Step 4: Simplify right side
    70,124.47x = 3,861,755,781.42
  5. Step 5: Solve for x
    x = 3,861,755,781.42/70,124.47
  6. Step 6: Final answer
    x = 55,070.02

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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.