Home / 66,275.20-99,445.20-31,208.80

Finding the Fourth Proportional to 66,275.20, 99,445.20 and 31,208.80

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Solution

The fourth proportional to 66,275.20, 99,445.20 and 31,208.80 is: 46,828.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,275.20 : 99,445.20 = 31,208.80 : x
  2. Step 2: Convert to fraction form
    66,275.20/99,445.20 = 31,208.80/x
  3. Step 3: Cross multiply
    66,275.20x = 99,445.20 × 31,208.80
  4. Step 4: Simplify right side
    66,275.20x = 3,103,565,357.76
  5. Step 5: Solve for x
    x = 3,103,565,357.76/66,275.20
  6. Step 6: Final answer
    x = 46,828.46

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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.