Home / 76,539.17-105,641.19-42,559.58

Finding the Fourth Proportional to 76,539.17, 105,641.19 and 42,559.58

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Solution

The fourth proportional to 76,539.17, 105,641.19 and 42,559.58 is: 58,741.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,539.17 : 105,641.19 = 42,559.58 : x
  2. Step 2: Convert to fraction form
    76,539.17/105,641.19 = 42,559.58/x
  3. Step 3: Cross multiply
    76,539.17x = 105,641.19 × 42,559.58
  4. Step 4: Simplify right side
    76,539.17x = 4,496,044,941.20
  5. Step 5: Solve for x
    x = 4,496,044,941.20/76,539.17
  6. Step 6: Final answer
    x = 58,741.75

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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.