Home / 91,023.40-136,535.14-28,698.76

Finding the Fourth Proportional to 91,023.40, 136,535.14 and 28,698.76

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Solution

The fourth proportional to 91,023.40, 136,535.14 and 28,698.76 is: 43,048.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,023.40 : 136,535.14 = 28,698.76 : x
  2. Step 2: Convert to fraction form
    91,023.40/136,535.14 = 28,698.76/x
  3. Step 3: Cross multiply
    91,023.40x = 136,535.14 × 28,698.76
  4. Step 4: Simplify right side
    91,023.40x = 3,918,389,214.43
  5. Step 5: Solve for x
    x = 3,918,389,214.43/91,023.40
  6. Step 6: Final answer
    x = 43,048.15

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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.