Home / 65,437.28-90,304.08-37,143.20

Finding the Fourth Proportional to 65,437.28, 90,304.08 and 37,143.20

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Solution

The fourth proportional to 65,437.28, 90,304.08 and 37,143.20 is: 51,257.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,437.28 : 90,304.08 = 37,143.20 : x
  2. Step 2: Convert to fraction form
    65,437.28/90,304.08 = 37,143.20/x
  3. Step 3: Cross multiply
    65,437.28x = 90,304.08 × 37,143.20
  4. Step 4: Simplify right side
    65,437.28x = 3,354,182,504.26
  5. Step 5: Solve for x
    x = 3,354,182,504.26/65,437.28
  6. Step 6: Final answer
    x = 51,257.98

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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.