Home / 91,211.40-136,926.45-51,262.20

Finding the Fourth Proportional to 91,211.40, 136,926.45 and 51,262.20

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Solution

The fourth proportional to 91,211.40, 136,926.45 and 51,262.20 is: 76,954.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,211.40 : 136,926.45 = 51,262.20 : x
  2. Step 2: Convert to fraction form
    91,211.40/136,926.45 = 51,262.20/x
  3. Step 3: Cross multiply
    91,211.40x = 136,926.45 × 51,262.20
  4. Step 4: Simplify right side
    91,211.40x = 7,019,151,065.19
  5. Step 5: Solve for x
    x = 7,019,151,065.19/91,211.40
  6. Step 6: Final answer
    x = 76,954.76

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1.5x scale

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.