Home / 99,828.32-137,763.38-54,506.70

Finding the Fourth Proportional to 99,828.32, 137,763.38 and 54,506.70

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Solution

The fourth proportional to 99,828.32, 137,763.38 and 54,506.70 is: 75,219.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,828.32 : 137,763.38 = 54,506.70 : x
  2. Step 2: Convert to fraction form
    99,828.32/137,763.38 = 54,506.70/x
  3. Step 3: Cross multiply
    99,828.32x = 137,763.38 × 54,506.70
  4. Step 4: Simplify right side
    99,828.32x = 7,509,027,224.65
  5. Step 5: Solve for x
    x = 7,509,027,224.65/99,828.32
  6. Step 6: Final answer
    x = 75,219.41

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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.