Home / 90,920.25-136,464.47-45,973.30

Finding the Fourth Proportional to 90,920.25, 136,464.47 and 45,973.30

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Solution

The fourth proportional to 90,920.25, 136,464.47 and 45,973.30 is: 69,002.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,920.25 : 136,464.47 = 45,973.30 : x
  2. Step 2: Convert to fraction form
    90,920.25/136,464.47 = 45,973.30/x
  3. Step 3: Cross multiply
    90,920.25x = 136,464.47 × 45,973.30
  4. Step 4: Simplify right side
    90,920.25x = 6,273,722,484.95
  5. Step 5: Solve for x
    x = 6,273,722,484.95/90,920.25
  6. Step 6: Final answer
    x = 69,002.47

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1.5x scale

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.