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Finding the Fourth Proportional to 68,607, 94,681.65 and 38,392.07

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Solution

The fourth proportional to 68,607, 94,681.65 and 38,392.07 is: 52,983.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,607 : 94,681.65 = 38,392.07 : x
  2. Step 2: Convert to fraction form
    68,607/94,681.65 = 38,392.07/x
  3. Step 3: Cross multiply
    68,607x = 94,681.65 × 38,392.07
  4. Step 4: Simplify right side
    68,607x = 3,635,024,061.11
  5. Step 5: Solve for x
    x = 3,635,024,061.11/68,607
  6. Step 6: Final answer
    x = 52,983.28

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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.