Home / 90,094.28-124,319.31-49,802.57

Finding the Fourth Proportional to 90,094.28, 124,319.31 and 49,802.57

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Solution

The fourth proportional to 90,094.28, 124,319.31 and 49,802.57 is: 68,721.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,094.28 : 124,319.31 = 49,802.57 : x
  2. Step 2: Convert to fraction form
    90,094.28/124,319.31 = 49,802.57/x
  3. Step 3: Cross multiply
    90,094.28x = 124,319.31 × 49,802.57
  4. Step 4: Simplify right side
    90,094.28x = 6,191,421,138.63
  5. Step 5: Solve for x
    x = 6,191,421,138.63/90,094.28
  6. Step 6: Final answer
    x = 68,721.58

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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.