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Finding the Fourth Proportional to 68,480, 94,510.08 and 38,673.92

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Solution

The fourth proportional to 68,480, 94,510.08 and 38,673.92 is: 53,374.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,480 : 94,510.08 = 38,673.92 : x
  2. Step 2: Convert to fraction form
    68,480/94,510.08 = 38,673.92/x
  3. Step 3: Cross multiply
    68,480x = 94,510.08 × 38,673.92
  4. Step 4: Simplify right side
    68,480x = 3,655,075,273.11
  5. Step 5: Solve for x
    x = 3,655,075,273.11/68,480
  6. Step 6: Final answer
    x = 53,374.35

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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.