Home / 71,760.16-99,029.40-43,445.68

Finding the Fourth Proportional to 71,760.16, 99,029.40 and 43,445.68

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Solution

The fourth proportional to 71,760.16, 99,029.40 and 43,445.68 is: 59,955.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,760.16 : 99,029.40 = 43,445.68 : x
  2. Step 2: Convert to fraction form
    71,760.16/99,029.40 = 43,445.68/x
  3. Step 3: Cross multiply
    71,760.16x = 99,029.40 × 43,445.68
  4. Step 4: Simplify right side
    71,760.16x = 4,302,399,622.99
  5. Step 5: Solve for x
    x = 4,302,399,622.99/71,760.16
  6. Step 6: Final answer
    x = 59,955.27

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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.