Home / 90,409.10-124,767.51-50,126.61

Finding the Fourth Proportional to 90,409.10, 124,767.51 and 50,126.61

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Solution

The fourth proportional to 90,409.10, 124,767.51 and 50,126.61 is: 69,176.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,409.10 : 124,767.51 = 50,126.61 : x
  2. Step 2: Convert to fraction form
    90,409.10/124,767.51 = 50,126.61/x
  3. Step 3: Cross multiply
    90,409.10x = 124,767.51 × 50,126.61
  4. Step 4: Simplify right side
    90,409.10x = 6,254,172,314.44
  5. Step 5: Solve for x
    x = 6,254,172,314.44/90,409.10
  6. Step 6: Final answer
    x = 69,176.36

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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.