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Finding the Fourth Proportional to 64,145.68, 88,463.08 and 40,274.96

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Solution

The fourth proportional to 64,145.68, 88,463.08 and 40,274.96 is: 55,543.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,145.68 : 88,463.08 = 40,274.96 : x
  2. Step 2: Convert to fraction form
    64,145.68/88,463.08 = 40,274.96/x
  3. Step 3: Cross multiply
    64,145.68x = 88,463.08 × 40,274.96
  4. Step 4: Simplify right side
    64,145.68x = 3,562,847,008.48
  5. Step 5: Solve for x
    x = 3,562,847,008.48/64,145.68
  6. Step 6: Final answer
    x = 55,543.05

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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.