Home / 52,854.93-72,939.18-28,981.40

Finding the Fourth Proportional to 52,854.93, 72,939.18 and 28,981.40

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Solution

The fourth proportional to 52,854.93, 72,939.18 and 28,981.40 is: 39,993.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,854.93 : 72,939.18 = 28,981.40 : x
  2. Step 2: Convert to fraction form
    52,854.93/72,939.18 = 28,981.40/x
  3. Step 3: Cross multiply
    52,854.93x = 72,939.18 × 28,981.40
  4. Step 4: Simplify right side
    52,854.93x = 2,113,879,295.24
  5. Step 5: Solve for x
    x = 2,113,879,295.24/52,854.93
  6. Step 6: Final answer
    x = 39,993.99

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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.