Home / 90,939.12-136,435.68-46,597.02

Finding the Fourth Proportional to 90,939.12, 136,435.68 and 46,597.02

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Solution

The fourth proportional to 90,939.12, 136,435.68 and 46,597.02 is: 69,909.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,939.12 : 136,435.68 = 46,597.02 : x
  2. Step 2: Convert to fraction form
    90,939.12/136,435.68 = 46,597.02/x
  3. Step 3: Cross multiply
    90,939.12x = 136,435.68 × 46,597.02
  4. Step 4: Simplify right side
    90,939.12x = 6,357,496,109.67
  5. Step 5: Solve for x
    x = 6,357,496,109.67/90,939.12
  6. Step 6: Final answer
    x = 69,909.36

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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.