Home / 79,421.31-109,603.19-43,611.48

Finding the Fourth Proportional to 79,421.31, 109,603.19 and 43,611.48

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Solution

The fourth proportional to 79,421.31, 109,603.19 and 43,611.48 is: 60,184.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,421.31 : 109,603.19 = 43,611.48 : x
  2. Step 2: Convert to fraction form
    79,421.31/109,603.19 = 43,611.48/x
  3. Step 3: Cross multiply
    79,421.31x = 109,603.19 × 43,611.48
  4. Step 4: Simplify right side
    79,421.31x = 4,779,957,437.65
  5. Step 5: Solve for x
    x = 4,779,957,437.65/79,421.31
  6. Step 6: Final answer
    x = 60,184.82

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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.