Home / 64,680.56-89,256.28-36,001.72

Finding the Fourth Proportional to 64,680.56, 89,256.28 and 36,001.72

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Solution

The fourth proportional to 64,680.56, 89,256.28 and 36,001.72 is: 49,680.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,680.56 : 89,256.28 = 36,001.72 : x
  2. Step 2: Convert to fraction form
    64,680.56/89,256.28 = 36,001.72/x
  3. Step 3: Cross multiply
    64,680.56x = 89,256.28 × 36,001.72
  4. Step 4: Simplify right side
    64,680.56x = 3,213,379,600.80
  5. Step 5: Solve for x
    x = 3,213,379,600.80/64,680.56
  6. Step 6: Final answer
    x = 49,680.76

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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.