Home / 90,827.96-136,242.32-31,663.52

Finding the Fourth Proportional to 90,827.96, 136,242.32 and 31,663.52

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Solution

The fourth proportional to 90,827.96, 136,242.32 and 31,663.52 is: 47,495.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,827.96 : 136,242.32 = 31,663.52 : x
  2. Step 2: Convert to fraction form
    90,827.96/136,242.32 = 31,663.52/x
  3. Step 3: Cross multiply
    90,827.96x = 136,242.32 × 31,663.52
  4. Step 4: Simplify right side
    90,827.96x = 4,313,911,424.17
  5. Step 5: Solve for x
    x = 4,313,911,424.17/90,827.96
  6. Step 6: Final answer
    x = 47,495.41

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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.