Home / 72,258.04-99,717.87-40,429.00

Finding the Fourth Proportional to 72,258.04, 99,717.87 and 40,429.00

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Solution

The fourth proportional to 72,258.04, 99,717.87 and 40,429.00 is: 55,793.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,258.04 : 99,717.87 = 40,429.00 : x
  2. Step 2: Convert to fraction form
    72,258.04/99,717.87 = 40,429.00/x
  3. Step 3: Cross multiply
    72,258.04x = 99,717.87 × 40,429.00
  4. Step 4: Simplify right side
    72,258.04x = 4,031,493,815.07
  5. Step 5: Solve for x
    x = 4,031,493,815.07/72,258.04
  6. Step 6: Final answer
    x = 55,793.01

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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.