Home / 90,854.64-136,283.16-28,525.14

Finding the Fourth Proportional to 90,854.64, 136,283.16 and 28,525.14

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Solution

The fourth proportional to 90,854.64, 136,283.16 and 28,525.14 is: 42,788.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,854.64 : 136,283.16 = 28,525.14 : x
  2. Step 2: Convert to fraction form
    90,854.64/136,283.16 = 28,525.14/x
  3. Step 3: Cross multiply
    90,854.64x = 136,283.16 × 28,525.14
  4. Step 4: Simplify right side
    90,854.64x = 3,887,496,218.64
  5. Step 5: Solve for x
    x = 3,887,496,218.64/90,854.64
  6. Step 6: Final answer
    x = 42,788.09

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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.