Home / 65,543.82-90,436.89-38,314.62

Finding the Fourth Proportional to 65,543.82, 90,436.89 and 38,314.62

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Solution

The fourth proportional to 65,543.82, 90,436.89 and 38,314.62 is: 52,866.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,543.82 : 90,436.89 = 38,314.62 : x
  2. Step 2: Convert to fraction form
    65,543.82/90,436.89 = 38,314.62/x
  3. Step 3: Cross multiply
    65,543.82x = 90,436.89 × 38,314.62
  4. Step 4: Simplify right side
    65,543.82x = 3,465,054,877.98
  5. Step 5: Solve for x
    x = 3,465,054,877.98/65,543.82
  6. Step 6: Final answer
    x = 52,866.23

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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.