Home / 72,022.04-99,393.60-40,191.08

Finding the Fourth Proportional to 72,022.04, 99,393.60 and 40,191.08

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Solution

The fourth proportional to 72,022.04, 99,393.60 and 40,191.08 is: 55,465.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,022.04 : 99,393.60 = 40,191.08 : x
  2. Step 2: Convert to fraction form
    72,022.04/99,393.60 = 40,191.08/x
  3. Step 3: Cross multiply
    72,022.04x = 99,393.60 × 40,191.08
  4. Step 4: Simplify right side
    72,022.04x = 3,994,736,129.09
  5. Step 5: Solve for x
    x = 3,994,736,129.09/72,022.04
  6. Step 6: Final answer
    x = 55,465.47

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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.