Home / 71,123.08-98,107.62-45,987.40

Finding the Fourth Proportional to 71,123.08, 98,107.62 and 45,987.40

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Solution

The fourth proportional to 71,123.08, 98,107.62 and 45,987.40 is: 63,435.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,123.08 : 98,107.62 = 45,987.40 : x
  2. Step 2: Convert to fraction form
    71,123.08/98,107.62 = 45,987.40/x
  3. Step 3: Cross multiply
    71,123.08x = 98,107.62 × 45,987.40
  4. Step 4: Simplify right side
    71,123.08x = 4,511,714,363.99
  5. Step 5: Solve for x
    x = 4,511,714,363.99/71,123.08
  6. Step 6: Final answer
    x = 63,435.31

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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.