Home / 53,970.54-80,979.20-28,981.42

Finding the Fourth Proportional to 53,970.54, 80,979.20 and 28,981.42

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Solution

The fourth proportional to 53,970.54, 80,979.20 and 28,981.42 is: 43,484.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,970.54 : 80,979.20 = 28,981.42 : x
  2. Step 2: Convert to fraction form
    53,970.54/80,979.20 = 28,981.42/x
  3. Step 3: Cross multiply
    53,970.54x = 80,979.20 × 28,981.42
  4. Step 4: Simplify right side
    53,970.54x = 2,346,892,206.46
  5. Step 5: Solve for x
    x = 2,346,892,206.46/53,970.54
  6. Step 6: Final answer
    x = 43,484.69

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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.