Home / 77,079.02-115,616.30-34,928.64

Finding the Fourth Proportional to 77,079.02, 115,616.30 and 34,928.64

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Solution

The fourth proportional to 77,079.02, 115,616.30 and 34,928.64 is: 52,391.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,079.02 : 115,616.30 = 34,928.64 : x
  2. Step 2: Convert to fraction form
    77,079.02/115,616.30 = 34,928.64/x
  3. Step 3: Cross multiply
    77,079.02x = 115,616.30 × 34,928.64
  4. Step 4: Simplify right side
    77,079.02x = 4,038,319,946.19
  5. Step 5: Solve for x
    x = 4,038,319,946.19/77,079.02
  6. Step 6: Final answer
    x = 52,391.95

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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.