Home / 66,423.30-99,565.74-28,973.31

Finding the Fourth Proportional to 66,423.30, 99,565.74 and 28,973.31

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Solution

The fourth proportional to 66,423.30, 99,565.74 and 28,973.31 is: 43,429.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,423.30 : 99,565.74 = 28,973.31 : x
  2. Step 2: Convert to fraction form
    66,423.30/99,565.74 = 28,973.31/x
  3. Step 3: Cross multiply
    66,423.30x = 99,565.74 × 28,973.31
  4. Step 4: Simplify right side
    66,423.30x = 2,884,749,050.40
  5. Step 5: Solve for x
    x = 2,884,749,050.40/66,423.30
  6. Step 6: Final answer
    x = 43,429.78

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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.