Home / 90,277.10-135,332.72-31,098.70

Finding the Fourth Proportional to 90,277.10, 135,332.72 and 31,098.70

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Solution

The fourth proportional to 90,277.10, 135,332.72 and 31,098.70 is: 46,619.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,277.10 : 135,332.72 = 31,098.70 : x
  2. Step 2: Convert to fraction form
    90,277.10/135,332.72 = 31,098.70/x
  3. Step 3: Cross multiply
    90,277.10x = 135,332.72 × 31,098.70
  4. Step 4: Simplify right side
    90,277.10x = 4,208,671,659.46
  5. Step 5: Solve for x
    x = 4,208,671,659.46/90,277.10
  6. Step 6: Final answer
    x = 46,619.48

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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.