Home / 84,190.47-126,243.45-28,010.76

Finding the Fourth Proportional to 84,190.47, 126,243.45 and 28,010.76

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Solution

The fourth proportional to 84,190.47, 126,243.45 and 28,010.76 is: 42,002.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,190.47 : 126,243.45 = 28,010.76 : x
  2. Step 2: Convert to fraction form
    84,190.47/126,243.45 = 28,010.76/x
  3. Step 3: Cross multiply
    84,190.47x = 126,243.45 × 28,010.76
  4. Step 4: Simplify right side
    84,190.47x = 3,536,174,979.52
  5. Step 5: Solve for x
    x = 3,536,174,979.52/84,190.47
  6. Step 6: Final answer
    x = 42,002.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.