Home / 84,726.20-127,031.70-40,374.20

Finding the Fourth Proportional to 84,726.20, 127,031.70 and 40,374.20

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Solution

The fourth proportional to 84,726.20, 127,031.70 and 40,374.20 is: 60,533.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,726.20 : 127,031.70 = 40,374.20 : x
  2. Step 2: Convert to fraction form
    84,726.20/127,031.70 = 40,374.20/x
  3. Step 3: Cross multiply
    84,726.20x = 127,031.70 × 40,374.20
  4. Step 4: Simplify right side
    84,726.20x = 5,128,803,262.14
  5. Step 5: Solve for x
    x = 5,128,803,262.14/84,726.20
  6. Step 6: Final answer
    x = 60,533.85

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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.