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Finding the Fourth Proportional to 90,044, 124,260.72 and 50,300

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Solution

The fourth proportional to 90,044, 124,260.72 and 50,300 is: 69,414

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,044 : 124,260.72 = 50,300 : x
  2. Step 2: Convert to fraction form
    90,044/124,260.72 = 50,300/x
  3. Step 3: Cross multiply
    90,044x = 124,260.72 × 50,300
  4. Step 4: Simplify right side
    90,044x = 6,250,314,216
  5. Step 5: Solve for x
    x = 6,250,314,216/90,044
  6. Step 6: Final answer
    x = 69,414

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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.