Home / 68,001.51-93,815.23-39,315.92

Finding the Fourth Proportional to 68,001.51, 93,815.23 and 39,315.92

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Solution

The fourth proportional to 68,001.51, 93,815.23 and 39,315.92 is: 54,240.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,001.51 : 93,815.23 = 39,315.92 : x
  2. Step 2: Convert to fraction form
    68,001.51/93,815.23 = 39,315.92/x
  3. Step 3: Cross multiply
    68,001.51x = 93,815.23 × 39,315.92
  4. Step 4: Simplify right side
    68,001.51x = 3,688,432,077.46
  5. Step 5: Solve for x
    x = 3,688,432,077.46/68,001.51
  6. Step 6: Final answer
    x = 54,240.44

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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.