Home / 53,898.45-74,380.68-30,931.96

Finding the Fourth Proportional to 53,898.45, 74,380.68 and 30,931.96

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Solution

The fourth proportional to 53,898.45, 74,380.68 and 30,931.96 is: 42,686.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,898.45 : 74,380.68 = 30,931.96 : x
  2. Step 2: Convert to fraction form
    53,898.45/74,380.68 = 30,931.96/x
  3. Step 3: Cross multiply
    53,898.45x = 74,380.68 × 30,931.96
  4. Step 4: Simplify right side
    53,898.45x = 2,300,740,218.53
  5. Step 5: Solve for x
    x = 2,300,740,218.53/53,898.45
  6. Step 6: Final answer
    x = 42,686.57

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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.