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Finding the Fourth Proportional to 64,233.72, 88,649.10 and 40,378.68

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Solution

The fourth proportional to 64,233.72, 88,649.10 and 40,378.68 is: 55,726.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,233.72 : 88,649.10 = 40,378.68 : x
  2. Step 2: Convert to fraction form
    64,233.72/88,649.10 = 40,378.68/x
  3. Step 3: Cross multiply
    64,233.72x = 88,649.10 × 40,378.68
  4. Step 4: Simplify right side
    64,233.72x = 3,579,533,641.19
  5. Step 5: Solve for x
    x = 3,579,533,641.19/64,233.72
  6. Step 6: Final answer
    x = 55,726.71

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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.