Home / 71,130.35-98,158.73-38,864.28

Finding the Fourth Proportional to 71,130.35, 98,158.73 and 38,864.28

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Solution

The fourth proportional to 71,130.35, 98,158.73 and 38,864.28 is: 53,632.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,130.35 : 98,158.73 = 38,864.28 : x
  2. Step 2: Convert to fraction form
    71,130.35/98,158.73 = 38,864.28/x
  3. Step 3: Cross multiply
    71,130.35x = 98,158.73 × 38,864.28
  4. Step 4: Simplify right side
    71,130.35x = 3,814,868,367.16
  5. Step 5: Solve for x
    x = 3,814,868,367.16/71,130.35
  6. Step 6: Final answer
    x = 53,632.08

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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.