Home / 72,708.40-109,062.87-39,444.13

Finding the Fourth Proportional to 72,708.40, 109,062.87 and 39,444.13

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Solution

The fourth proportional to 72,708.40, 109,062.87 and 39,444.13 is: 59,166.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,708.40 : 109,062.87 = 39,444.13 : x
  2. Step 2: Convert to fraction form
    72,708.40/109,062.87 = 39,444.13/x
  3. Step 3: Cross multiply
    72,708.40x = 109,062.87 × 39,444.13
  4. Step 4: Simplify right side
    72,708.40x = 4,301,890,022.45
  5. Step 5: Solve for x
    x = 4,301,890,022.45/72,708.40
  6. Step 6: Final answer
    x = 59,166.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.