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Finding the Fourth Proportional to 90,510.66, 124,894.68 and 50,214.38

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Solution

The fourth proportional to 90,510.66, 124,894.68 and 50,214.38 is: 69,290.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,510.66 : 124,894.68 = 50,214.38 : x
  2. Step 2: Convert to fraction form
    90,510.66/124,894.68 = 50,214.38/x
  3. Step 3: Cross multiply
    90,510.66x = 124,894.68 × 50,214.38
  4. Step 4: Simplify right side
    90,510.66x = 6,271,508,297.03
  5. Step 5: Solve for x
    x = 6,271,508,297.03/90,510.66
  6. Step 6: Final answer
    x = 69,290.27

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1.5x scale

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.