Home / 91,434.18-126,189.63-51,158.14

Finding the Fourth Proportional to 91,434.18, 126,189.63 and 51,158.14

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Solution

The fourth proportional to 91,434.18, 126,189.63 and 51,158.14 is: 70,604.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,434.18 : 126,189.63 = 51,158.14 : x
  2. Step 2: Convert to fraction form
    91,434.18/126,189.63 = 51,158.14/x
  3. Step 3: Cross multiply
    91,434.18x = 126,189.63 × 51,158.14
  4. Step 4: Simplify right side
    91,434.18x = 6,455,626,758.09
  5. Step 5: Solve for x
    x = 6,455,626,758.09/91,434.18
  6. Step 6: Final answer
    x = 70,604.09

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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.