Home / 65,225.12-90,010.32-35,417.12

Finding the Fourth Proportional to 65,225.12, 90,010.32 and 35,417.12

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Solution

The fourth proportional to 65,225.12, 90,010.32 and 35,417.12 is: 48,875.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,225.12 : 90,010.32 = 35,417.12 : x
  2. Step 2: Convert to fraction form
    65,225.12/90,010.32 = 35,417.12/x
  3. Step 3: Cross multiply
    65,225.12x = 90,010.32 × 35,417.12
  4. Step 4: Simplify right side
    65,225.12x = 3,187,906,304.68
  5. Step 5: Solve for x
    x = 3,187,906,304.68/65,225.12
  6. Step 6: Final answer
    x = 48,875.44

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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.