Home / 68,101.56-93,981.47-39,823.65

Finding the Fourth Proportional to 68,101.56, 93,981.47 and 39,823.65

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Solution

The fourth proportional to 68,101.56, 93,981.47 and 39,823.65 is: 54,957.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,101.56 : 93,981.47 = 39,823.65 : x
  2. Step 2: Convert to fraction form
    68,101.56/93,981.47 = 39,823.65/x
  3. Step 3: Cross multiply
    68,101.56x = 93,981.47 × 39,823.65
  4. Step 4: Simplify right side
    68,101.56x = 3,742,684,968.65
  5. Step 5: Solve for x
    x = 3,742,684,968.65/68,101.56
  6. Step 6: Final answer
    x = 54,957.40

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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.