Home / 76,539.64-105,625.95-42,085.82

Finding the Fourth Proportional to 76,539.64, 105,625.95 and 42,085.82

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Solution

The fourth proportional to 76,539.64, 105,625.95 and 42,085.82 is: 58,079.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,539.64 : 105,625.95 = 42,085.82 : x
  2. Step 2: Convert to fraction form
    76,539.64/105,625.95 = 42,085.82/x
  3. Step 3: Cross multiply
    76,539.64x = 105,625.95 × 42,085.82
  4. Step 4: Simplify right side
    76,539.64x = 4,445,354,719.03
  5. Step 5: Solve for x
    x = 4,445,354,719.03/76,539.64
  6. Step 6: Final answer
    x = 58,079.12

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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.