Home / 76,690.16-115,062.93-26,777.62

Finding the Fourth Proportional to 76,690.16, 115,062.93 and 26,777.62

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Solution

The fourth proportional to 76,690.16, 115,062.93 and 26,777.62 is: 40,176.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,690.16 : 115,062.93 = 26,777.62 : x
  2. Step 2: Convert to fraction form
    76,690.16/115,062.93 = 26,777.62/x
  3. Step 3: Cross multiply
    76,690.16x = 115,062.93 × 26,777.62
  4. Step 4: Simplify right side
    76,690.16x = 3,081,111,559.46
  5. Step 5: Solve for x
    x = 3,081,111,559.46/76,690.16
  6. Step 6: Final answer
    x = 40,176.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.