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Finding the Fourth Proportional to 94,160.64, 129,940.80 and 53,886.72

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Solution

The fourth proportional to 94,160.64, 129,940.80 and 53,886.72 is: 74,363.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,160.64 : 129,940.80 = 53,886.72 : x
  2. Step 2: Convert to fraction form
    94,160.64/129,940.80 = 53,886.72/x
  3. Step 3: Cross multiply
    94,160.64x = 129,940.80 × 53,886.72
  4. Step 4: Simplify right side
    94,160.64x = 7,002,083,506.18
  5. Step 5: Solve for x
    x = 7,002,083,506.18/94,160.64
  6. Step 6: Final answer
    x = 74,363.17

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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.