Home / 68,730-94,845.80-40,437.52

Finding the Fourth Proportional to 68,730, 94,845.80 and 40,437.52

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Solution

The fourth proportional to 68,730, 94,845.80 and 40,437.52 is: 55,802.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,730 : 94,845.80 = 40,437.52 : x
  2. Step 2: Convert to fraction form
    68,730/94,845.80 = 40,437.52/x
  3. Step 3: Cross multiply
    68,730x = 94,845.80 × 40,437.52
  4. Step 4: Simplify right side
    68,730x = 3,835,328,934.42
  5. Step 5: Solve for x
    x = 3,835,328,934.42/68,730
  6. Step 6: Final answer
    x = 55,802.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.