Home / 91,434.19-126,189.63-51,158.15

Finding the Fourth Proportional to 91,434.19, 126,189.63 and 51,158.15

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Solution

The fourth proportional to 91,434.19, 126,189.63 and 51,158.15 is: 70,604.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,434.19 : 126,189.63 = 51,158.15 : x
  2. Step 2: Convert to fraction form
    91,434.19/126,189.63 = 51,158.15/x
  3. Step 3: Cross multiply
    91,434.19x = 126,189.63 × 51,158.15
  4. Step 4: Simplify right side
    91,434.19x = 6,455,628,019.98
  5. Step 5: Solve for x
    x = 6,455,628,019.98/91,434.19
  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.