Home / 67,638.78-93,330.63-42,470.46

Finding the Fourth Proportional to 67,638.78, 93,330.63 and 42,470.46

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Solution

The fourth proportional to 67,638.78, 93,330.63 and 42,470.46 is: 58,602.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,638.78 : 93,330.63 = 42,470.46 : x
  2. Step 2: Convert to fraction form
    67,638.78/93,330.63 = 42,470.46/x
  3. Step 3: Cross multiply
    67,638.78x = 93,330.63 × 42,470.46
  4. Step 4: Simplify right side
    67,638.78x = 3,963,794,788.19
  5. Step 5: Solve for x
    x = 3,963,794,788.19/67,638.78
  6. Step 6: Final answer
    x = 58,602.40

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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.