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Finding the Fourth Proportional to 54,312.88, 81,482.88 and 38,333.60

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Solution

The fourth proportional to 54,312.88, 81,482.88 and 38,333.60 is: 57,509.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,312.88 : 81,482.88 = 38,333.60 : x
  2. Step 2: Convert to fraction form
    54,312.88/81,482.88 = 38,333.60/x
  3. Step 3: Cross multiply
    54,312.88x = 81,482.88 × 38,333.60
  4. Step 4: Simplify right side
    54,312.88x = 3,123,532,128.77
  5. Step 5: Solve for x
    x = 3,123,532,128.77/54,312.88
  6. Step 6: Final answer
    x = 57,509.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.