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Finding the Fourth Proportional to 74,946, 112,474.40 and 35,503.20

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Solution

The fourth proportional to 74,946, 112,474.40 and 35,503.20 is: 53,281.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,946 : 112,474.40 = 35,503.20 : x
  2. Step 2: Convert to fraction form
    74,946/112,474.40 = 35,503.20/x
  3. Step 3: Cross multiply
    74,946x = 112,474.40 × 35,503.20
  4. Step 4: Simplify right side
    74,946x = 3,993,201,118.08
  5. Step 5: Solve for x
    x = 3,993,201,118.08/74,946
  6. Step 6: Final answer
    x = 53,281.04

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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.