Home / 65,548.51-90,545.98-51,387.12

Finding the Fourth Proportional to 65,548.51, 90,545.98 and 51,387.12

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Solution

The fourth proportional to 65,548.51, 90,545.98 and 51,387.12 is: 70,984.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,548.51 : 90,545.98 = 51,387.12 : x
  2. Step 2: Convert to fraction form
    65,548.51/90,545.98 = 51,387.12/x
  3. Step 3: Cross multiply
    65,548.51x = 90,545.98 × 51,387.12
  4. Step 4: Simplify right side
    65,548.51x = 4,652,897,589.45
  5. Step 5: Solve for x
    x = 4,652,897,589.45/65,548.51
  6. Step 6: Final answer
    x = 70,984.04

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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.