Home / 78,142.02-117,212.63-24,839.16

Finding the Fourth Proportional to 78,142.02, 117,212.63 and 24,839.16

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Solution

The fourth proportional to 78,142.02, 117,212.63 and 24,839.16 is: 37,258.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,142.02 : 117,212.63 = 24,839.16 : x
  2. Step 2: Convert to fraction form
    78,142.02/117,212.63 = 24,839.16/x
  3. Step 3: Cross multiply
    78,142.02x = 117,212.63 × 24,839.16
  4. Step 4: Simplify right side
    78,142.02x = 2,911,463,146.40
  5. Step 5: Solve for x
    x = 2,911,463,146.40/78,142.02
  6. Step 6: Final answer
    x = 37,258.61

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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.