Home / 76,629.60-115,030.80-59,176.80

Finding the Fourth Proportional to 76,629.60, 115,030.80 and 59,176.80

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Solution

The fourth proportional to 76,629.60, 115,030.80 and 59,176.80 is: 88,831.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,629.60 : 115,030.80 = 59,176.80 : x
  2. Step 2: Convert to fraction form
    76,629.60/115,030.80 = 59,176.80/x
  3. Step 3: Cross multiply
    76,629.60x = 115,030.80 × 59,176.80
  4. Step 4: Simplify right side
    76,629.60x = 6,807,154,645.44
  5. Step 5: Solve for x
    x = 6,807,154,645.44/76,629.60
  6. Step 6: Final answer
    x = 88,831.92

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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.