Home / 91,820.47-126,712.25-51,534.24

Finding the Fourth Proportional to 91,820.47, 126,712.25 and 51,534.24

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Solution

The fourth proportional to 91,820.47, 126,712.25 and 51,534.24 is: 71,117.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,820.47 : 126,712.25 = 51,534.24 : x
  2. Step 2: Convert to fraction form
    91,820.47/126,712.25 = 51,534.24/x
  3. Step 3: Cross multiply
    91,820.47x = 126,712.25 × 51,534.24
  4. Step 4: Simplify right side
    91,820.47x = 6,530,019,133.94
  5. Step 5: Solve for x
    x = 6,530,019,133.94/91,820.47
  6. Step 6: Final answer
    x = 71,117.25

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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.