Home / 65,115.13-89,859.41-35,307.13

Finding the Fourth Proportional to 65,115.13, 89,859.41 and 35,307.13

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Solution

The fourth proportional to 65,115.13, 89,859.41 and 35,307.13 is: 48,724.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,115.13 : 89,859.41 = 35,307.13 : x
  2. Step 2: Convert to fraction form
    65,115.13/89,859.41 = 35,307.13/x
  3. Step 3: Cross multiply
    65,115.13x = 89,859.41 × 35,307.13
  4. Step 4: Simplify right side
    65,115.13x = 3,172,677,870.59
  5. Step 5: Solve for x
    x = 3,172,677,870.59/65,115.13
  6. Step 6: Final answer
    x = 48,724.13

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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.