Home / 90,746.14-136,045.64-40,789.66

Finding the Fourth Proportional to 90,746.14, 136,045.64 and 40,789.66

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Solution

The fourth proportional to 90,746.14, 136,045.64 and 40,789.66 is: 61,151.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,746.14 : 136,045.64 = 40,789.66 : x
  2. Step 2: Convert to fraction form
    90,746.14/136,045.64 = 40,789.66/x
  3. Step 3: Cross multiply
    90,746.14x = 136,045.64 × 40,789.66
  4. Step 4: Simplify right side
    90,746.14x = 5,549,255,161.94
  5. Step 5: Solve for x
    x = 5,549,255,161.94/90,746.14
  6. Step 6: Final answer
    x = 61,151.42

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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.