Home / 91,518.12-126,270-62,846.40

Finding the Fourth Proportional to 91,518.12, 126,270 and 62,846.40

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Solution

The fourth proportional to 91,518.12, 126,270 and 62,846.40 is: 86,710.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,518.12 : 126,270 = 62,846.40 : x
  2. Step 2: Convert to fraction form
    91,518.12/126,270 = 62,846.40/x
  3. Step 3: Cross multiply
    91,518.12x = 126,270 × 62,846.40
  4. Step 4: Simplify right side
    91,518.12x = 7,935,614,928
  5. Step 5: Solve for x
    x = 7,935,614,928/91,518.12
  6. Step 6: Final answer
    x = 86,710.86

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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.