Home / 76,510.02-114,412.71-72,777.54

Finding the Fourth Proportional to 76,510.02, 114,412.71 and 72,777.54

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Solution

The fourth proportional to 76,510.02, 114,412.71 and 72,777.54 is: 108,831.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,510.02 : 114,412.71 = 72,777.54 : x
  2. Step 2: Convert to fraction form
    76,510.02/114,412.71 = 72,777.54/x
  3. Step 3: Cross multiply
    76,510.02x = 114,412.71 × 72,777.54
  4. Step 4: Simplify right side
    76,510.02x = 8,326,675,578.53
  5. Step 5: Solve for x
    x = 8,326,675,578.53/76,510.02
  6. Step 6: Final answer
    x = 108,831.18

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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.