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Finding the Fourth Proportional to 94,862.98, 130,895.13 and 56,638

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Solution

The fourth proportional to 94,862.98, 130,895.13 and 56,638 is: 78,151.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,862.98 : 130,895.13 = 56,638 : x
  2. Step 2: Convert to fraction form
    94,862.98/130,895.13 = 56,638/x
  3. Step 3: Cross multiply
    94,862.98x = 130,895.13 × 56,638
  4. Step 4: Simplify right side
    94,862.98x = 7,413,638,372.94
  5. Step 5: Solve for x
    x = 7,413,638,372.94/94,862.98
  6. Step 6: Final answer
    x = 78,151.02

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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.