Home / 53,815.68-74,263.68-31,459.20

Finding the Fourth Proportional to 53,815.68, 74,263.68 and 31,459.20

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Solution

The fourth proportional to 53,815.68, 74,263.68 and 31,459.20 is: 43,412.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,815.68 : 74,263.68 = 31,459.20 : x
  2. Step 2: Convert to fraction form
    53,815.68/74,263.68 = 31,459.20/x
  3. Step 3: Cross multiply
    53,815.68x = 74,263.68 × 31,459.20
  4. Step 4: Simplify right side
    53,815.68x = 2,336,275,961.86
  5. Step 5: Solve for x
    x = 2,336,275,961.86/53,815.68
  6. Step 6: Final answer
    x = 43,412.55

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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.