Home / 65,211.54-90,005.58-39,726.24

Finding the Fourth Proportional to 65,211.54, 90,005.58 and 39,726.24

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Solution

The fourth proportional to 65,211.54, 90,005.58 and 39,726.24 is: 54,830.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,211.54 : 90,005.58 = 39,726.24 : x
  2. Step 2: Convert to fraction form
    65,211.54/90,005.58 = 39,726.24/x
  3. Step 3: Cross multiply
    65,211.54x = 90,005.58 × 39,726.24
  4. Step 4: Simplify right side
    65,211.54x = 3,575,583,272.42
  5. Step 5: Solve for x
    x = 3,575,583,272.42/65,211.54
  6. Step 6: Final answer
    x = 54,830.53

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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.