Home / 72,359.50-99,868-45,506.02

Finding the Fourth Proportional to 72,359.50, 99,868 and 45,506.02

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Solution

The fourth proportional to 72,359.50, 99,868 and 45,506.02 is: 62,805.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,359.50 : 99,868 = 45,506.02 : x
  2. Step 2: Convert to fraction form
    72,359.50/99,868 = 45,506.02/x
  3. Step 3: Cross multiply
    72,359.50x = 99,868 × 45,506.02
  4. Step 4: Simplify right side
    72,359.50x = 4,544,595,205.36
  5. Step 5: Solve for x
    x = 4,544,595,205.36/72,359.50
  6. Step 6: Final answer
    x = 62,805.79

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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.