Home / 91,139.15-125,775.03-52,895.81

Finding the Fourth Proportional to 91,139.15, 125,775.03 and 52,895.81

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Solution

The fourth proportional to 91,139.15, 125,775.03 and 52,895.81 is: 72,997.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,139.15 : 125,775.03 = 52,895.81 : x
  2. Step 2: Convert to fraction form
    91,139.15/125,775.03 = 52,895.81/x
  3. Step 3: Cross multiply
    91,139.15x = 125,775.03 × 52,895.81
  4. Step 4: Simplify right side
    91,139.15x = 6,652,971,460.75
  5. Step 5: Solve for x
    x = 6,652,971,460.75/91,139.15
  6. Step 6: Final answer
    x = 72,997.96

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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.