Home / 74,730.42-111,970.98-53,638.83

Finding the Fourth Proportional to 74,730.42, 111,970.98 and 53,638.83

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Solution

The fourth proportional to 74,730.42, 111,970.98 and 53,638.83 is: 80,368.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,730.42 : 111,970.98 = 53,638.83 : x
  2. Step 2: Convert to fraction form
    74,730.42/111,970.98 = 53,638.83/x
  3. Step 3: Cross multiply
    74,730.42x = 111,970.98 × 53,638.83
  4. Step 4: Simplify right side
    74,730.42x = 6,005,992,361.15
  5. Step 5: Solve for x
    x = 6,005,992,361.15/74,730.42
  6. Step 6: Final answer
    x = 80,368.78

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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.