Home / 90,429.24-124,787.32-50,140.64

Finding the Fourth Proportional to 90,429.24, 124,787.32 and 50,140.64

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Solution

The fourth proportional to 90,429.24, 124,787.32 and 50,140.64 is: 69,191.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,429.24 : 124,787.32 = 50,140.64 : x
  2. Step 2: Convert to fraction form
    90,429.24/124,787.32 = 50,140.64/x
  3. Step 3: Cross multiply
    90,429.24x = 124,787.32 × 50,140.64
  4. Step 4: Simplify right side
    90,429.24x = 6,256,916,088.68
  5. Step 5: Solve for x
    x = 6,256,916,088.68/90,429.24
  6. Step 6: Final answer
    x = 69,191.29

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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.