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Finding the Fourth Proportional to 84,637.76, 126,865.36 and 37,210.72

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Solution

The fourth proportional to 84,637.76, 126,865.36 and 37,210.72 is: 55,775.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,637.76 : 126,865.36 = 37,210.72 : x
  2. Step 2: Convert to fraction form
    84,637.76/126,865.36 = 37,210.72/x
  3. Step 3: Cross multiply
    84,637.76x = 126,865.36 × 37,210.72
  4. Step 4: Simplify right side
    84,637.76x = 4,720,751,388.66
  5. Step 5: Solve for x
    x = 4,720,751,388.66/84,637.76
  6. Step 6: Final answer
    x = 55,775.95

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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.