Home / 56,561.76-78,045.86-32,690.66

Finding the Fourth Proportional to 56,561.76, 78,045.86 and 32,690.66

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Solution

The fourth proportional to 56,561.76, 78,045.86 and 32,690.66 is: 45,107.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,561.76 : 78,045.86 = 32,690.66 : x
  2. Step 2: Convert to fraction form
    56,561.76/78,045.86 = 32,690.66/x
  3. Step 3: Cross multiply
    56,561.76x = 78,045.86 × 32,690.66
  4. Step 4: Simplify right side
    56,561.76x = 2,551,370,365.16
  5. Step 5: Solve for x
    x = 2,551,370,365.16/56,561.76
  6. Step 6: Final answer
    x = 45,107.69

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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.