Home / 65,548.89-90,458.10-37,254.78

Finding the Fourth Proportional to 65,548.89, 90,458.10 and 37,254.78

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Solution

The fourth proportional to 65,548.89, 90,458.10 and 37,254.78 is: 51,411.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,548.89 : 90,458.10 = 37,254.78 : x
  2. Step 2: Convert to fraction form
    65,548.89/90,458.10 = 37,254.78/x
  3. Step 3: Cross multiply
    65,548.89x = 90,458.10 × 37,254.78
  4. Step 4: Simplify right side
    65,548.89x = 3,369,996,614.72
  5. Step 5: Solve for x
    x = 3,369,996,614.72/65,548.89
  6. Step 6: Final answer
    x = 51,411.96

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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.