Home / 90,079.95-135,122.67-30,914.76

Finding the Fourth Proportional to 90,079.95, 135,122.67 and 30,914.76

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Solution

The fourth proportional to 90,079.95, 135,122.67 and 30,914.76 is: 46,373.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,079.95 : 135,122.67 = 30,914.76 : x
  2. Step 2: Convert to fraction form
    90,079.95/135,122.67 = 30,914.76/x
  3. Step 3: Cross multiply
    90,079.95x = 135,122.67 × 30,914.76
  4. Step 4: Simplify right side
    90,079.95x = 4,177,284,913.61
  5. Step 5: Solve for x
    x = 4,177,284,913.61/90,079.95
  6. Step 6: Final answer
    x = 46,373.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.