Home / 76,155.09-114,102.63-53,931.53

Finding the Fourth Proportional to 76,155.09, 114,102.63 and 53,931.53

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Solution

The fourth proportional to 76,155.09, 114,102.63 and 53,931.53 is: 80,805.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,155.09 : 114,102.63 = 53,931.53 : x
  2. Step 2: Convert to fraction form
    76,155.09/114,102.63 = 53,931.53/x
  3. Step 3: Cross multiply
    76,155.09x = 114,102.63 × 53,931.53
  4. Step 4: Simplify right side
    76,155.09x = 6,153,728,842.41
  5. Step 5: Solve for x
    x = 6,153,728,842.41/76,155.09
  6. Step 6: Final answer
    x = 80,805.22

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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.