Home / 90,387.80-124,741.16-50,103.26

Finding the Fourth Proportional to 90,387.80, 124,741.16 and 50,103.26

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Solution

The fourth proportional to 90,387.80, 124,741.16 and 50,103.26 is: 69,145.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,387.80 : 124,741.16 = 50,103.26 : x
  2. Step 2: Convert to fraction form
    90,387.80/124,741.16 = 50,103.26/x
  3. Step 3: Cross multiply
    90,387.80x = 124,741.16 × 50,103.26
  4. Step 4: Simplify right side
    90,387.80x = 6,249,938,835.46
  5. Step 5: Solve for x
    x = 6,249,938,835.46/90,387.80
  6. Step 6: Final answer
    x = 69,145.82

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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.