Home / 52,815.60-72,885.10-28,942.21

Finding the Fourth Proportional to 52,815.60, 72,885.10 and 28,942.21

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Solution

The fourth proportional to 52,815.60, 72,885.10 and 28,942.21 is: 39,940.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,815.60 : 72,885.10 = 28,942.21 : x
  2. Step 2: Convert to fraction form
    52,815.60/72,885.10 = 28,942.21/x
  3. Step 3: Cross multiply
    52,815.60x = 72,885.10 × 28,942.21
  4. Step 4: Simplify right side
    52,815.60x = 2,109,455,870.07
  5. Step 5: Solve for x
    x = 2,109,455,870.07/52,815.60
  6. Step 6: Final answer
    x = 39,940.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.