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Finding the Fourth Proportional to 60,248.96, 90,368.40 and 18,692

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Solution

The fourth proportional to 60,248.96, 90,368.40 and 18,692 is: 28,036.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,248.96 : 90,368.40 = 18,692 : x
  2. Step 2: Convert to fraction form
    60,248.96/90,368.40 = 18,692/x
  3. Step 3: Cross multiply
    60,248.96x = 90,368.40 × 18,692
  4. Step 4: Simplify right side
    60,248.96x = 1,689,166,132.80
  5. Step 5: Solve for x
    x = 1,689,166,132.80/60,248.96
  6. Step 6: Final answer
    x = 28,036.44

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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.