Home / 65,715.57-90,655.88-43,044.75

Finding the Fourth Proportional to 65,715.57, 90,655.88 and 43,044.75

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Solution

The fourth proportional to 65,715.57, 90,655.88 and 43,044.75 is: 59,381.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,715.57 : 90,655.88 = 43,044.75 : x
  2. Step 2: Convert to fraction form
    65,715.57/90,655.88 = 43,044.75/x
  3. Step 3: Cross multiply
    65,715.57x = 90,655.88 × 43,044.75
  4. Step 4: Simplify right side
    65,715.57x = 3,902,259,475.41
  5. Step 5: Solve for x
    x = 3,902,259,475.41/65,715.57
  6. Step 6: Final answer
    x = 59,381.05

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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.