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Finding the Fourth Proportional to 40,848.40, 61,235.70 and 28,374.30

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Solution

The fourth proportional to 40,848.40, 61,235.70 and 28,374.30 is: 42,535.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,848.40 : 61,235.70 = 28,374.30 : x
  2. Step 2: Convert to fraction form
    40,848.40/61,235.70 = 28,374.30/x
  3. Step 3: Cross multiply
    40,848.40x = 61,235.70 × 28,374.30
  4. Step 4: Simplify right side
    40,848.40x = 1,737,520,016.11
  5. Step 5: Solve for x
    x = 1,737,520,016.11/40,848.40
  6. Step 6: Final answer
    x = 42,535.81

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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.