Home / 51,985.91-71,740.58-28,112.60

Finding the Fourth Proportional to 51,985.91, 71,740.58 and 28,112.60

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Solution

The fourth proportional to 51,985.91, 71,740.58 and 28,112.60 is: 38,795.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,985.91 : 71,740.58 = 28,112.60 : x
  2. Step 2: Convert to fraction form
    51,985.91/71,740.58 = 28,112.60/x
  3. Step 3: Cross multiply
    51,985.91x = 71,740.58 × 28,112.60
  4. Step 4: Simplify right side
    51,985.91x = 2,016,813,730.04
  5. Step 5: Solve for x
    x = 2,016,813,730.04/51,985.91
  6. Step 6: Final answer
    x = 38,795.40

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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.