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Finding the Fourth Proportional to 65,740.42, 90,726.51 and 37,447.93

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Solution

The fourth proportional to 65,740.42, 90,726.51 and 37,447.93 is: 51,680.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,740.42 : 90,726.51 = 37,447.93 : x
  2. Step 2: Convert to fraction form
    65,740.42/90,726.51 = 37,447.93/x
  3. Step 3: Cross multiply
    65,740.42x = 90,726.51 × 37,447.93
  4. Step 4: Simplify right side
    65,740.42x = 3,397,519,995.62
  5. Step 5: Solve for x
    x = 3,397,519,995.62/65,740.42
  6. Step 6: Final answer
    x = 51,680.84

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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.