Home / 70,222.02-96,906.38-38,390.91

Finding the Fourth Proportional to 70,222.02, 96,906.38 and 38,390.91

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Solution

The fourth proportional to 70,222.02, 96,906.38 and 38,390.91 is: 52,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,222.02 : 96,906.38 = 38,390.91 : x
  2. Step 2: Convert to fraction form
    70,222.02/96,906.38 = 38,390.91/x
  3. Step 3: Cross multiply
    70,222.02x = 96,906.38 × 38,390.91
  4. Step 4: Simplify right side
    70,222.02x = 3,720,323,557.65
  5. Step 5: Solve for x
    x = 3,720,323,557.65/70,222.02
  6. Step 6: Final answer
    x = 52,979.45

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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.