Home / 72,275.58-99,744.48-40,444.20

Finding the Fourth Proportional to 72,275.58, 99,744.48 and 40,444.20

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Solution

The fourth proportional to 72,275.58, 99,744.48 and 40,444.20 is: 55,815.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,275.58 : 99,744.48 = 40,444.20 : x
  2. Step 2: Convert to fraction form
    72,275.58/99,744.48 = 40,444.20/x
  3. Step 3: Cross multiply
    72,275.58x = 99,744.48 × 40,444.20
  4. Step 4: Simplify right side
    72,275.58x = 4,034,085,698.02
  5. Step 5: Solve for x
    x = 4,034,085,698.02/72,275.58
  6. Step 6: Final answer
    x = 55,815.33

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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.