Home / 52,086.11-71,878.32-28,211.36

Finding the Fourth Proportional to 52,086.11, 71,878.32 and 28,211.36

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Solution

The fourth proportional to 52,086.11, 71,878.32 and 28,211.36 is: 38,931.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,086.11 : 71,878.32 = 28,211.36 : x
  2. Step 2: Convert to fraction form
    52,086.11/71,878.32 = 28,211.36/x
  3. Step 3: Cross multiply
    52,086.11x = 71,878.32 × 28,211.36
  4. Step 4: Simplify right side
    52,086.11x = 2,027,784,802.32
  5. Step 5: Solve for x
    x = 2,027,784,802.32/52,086.11
  6. Step 6: Final answer
    x = 38,931.40

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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.