Home / 65,209.12-89,988.24-35,401.12

Finding the Fourth Proportional to 65,209.12, 89,988.24 and 35,401.12

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Solution

The fourth proportional to 65,209.12, 89,988.24 and 35,401.12 is: 48,853.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,209.12 : 89,988.24 = 35,401.12 : x
  2. Step 2: Convert to fraction form
    65,209.12/89,988.24 = 35,401.12/x
  3. Step 3: Cross multiply
    65,209.12x = 89,988.24 × 35,401.12
  4. Step 4: Simplify right side
    65,209.12x = 3,185,684,482.83
  5. Step 5: Solve for x
    x = 3,185,684,482.83/65,209.12
  6. Step 6: Final answer
    x = 48,853.36

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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.