Home / 67,929.54-93,721.70-39,615.18

Finding the Fourth Proportional to 67,929.54, 93,721.70 and 39,615.18

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Solution

The fourth proportional to 67,929.54, 93,721.70 and 39,615.18 is: 54,656.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,929.54 : 93,721.70 = 39,615.18 : x
  2. Step 2: Convert to fraction form
    67,929.54/93,721.70 = 39,615.18/x
  3. Step 3: Cross multiply
    67,929.54x = 93,721.70 × 39,615.18
  4. Step 4: Simplify right side
    67,929.54x = 3,712,802,015.41
  5. Step 5: Solve for x
    x = 3,712,802,015.41/67,929.54
  6. Step 6: Final answer
    x = 54,656.66

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1.5x scale

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.