Home / 65,045.43-89,763.39-38,188.26

Finding the Fourth Proportional to 65,045.43, 89,763.39 and 38,188.26

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Solution

The fourth proportional to 65,045.43, 89,763.39 and 38,188.26 is: 52,700.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,045.43 : 89,763.39 = 38,188.26 : x
  2. Step 2: Convert to fraction form
    65,045.43/89,763.39 = 38,188.26/x
  3. Step 3: Cross multiply
    65,045.43x = 89,763.39 × 38,188.26
  4. Step 4: Simplify right side
    65,045.43x = 3,427,907,675.80
  5. Step 5: Solve for x
    x = 3,427,907,675.80/65,045.43
  6. Step 6: Final answer
    x = 52,700.21

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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.