Home / 65,433.13-90,353.85-63,317.21

Finding the Fourth Proportional to 65,433.13, 90,353.85 and 63,317.21

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Solution

The fourth proportional to 65,433.13, 90,353.85 and 63,317.21 is: 87,432.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,433.13 : 90,353.85 = 63,317.21 : x
  2. Step 2: Convert to fraction form
    65,433.13/90,353.85 = 63,317.21/x
  3. Step 3: Cross multiply
    65,433.13x = 90,353.85 × 63,317.21
  4. Step 4: Simplify right side
    65,433.13x = 5,720,953,124.27
  5. Step 5: Solve for x
    x = 5,720,953,124.27/65,433.13
  6. Step 6: Final answer
    x = 87,432.06

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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.