Home / 55,328.38-76,359.60-31,458.62

Finding the Fourth Proportional to 55,328.38, 76,359.60 and 31,458.62

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Solution

The fourth proportional to 55,328.38, 76,359.60 and 31,458.62 is: 43,416.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,328.38 : 76,359.60 = 31,458.62 : x
  2. Step 2: Convert to fraction form
    55,328.38/76,359.60 = 31,458.62/x
  3. Step 3: Cross multiply
    55,328.38x = 76,359.60 × 31,458.62
  4. Step 4: Simplify right side
    55,328.38x = 2,402,167,639.75
  5. Step 5: Solve for x
    x = 2,402,167,639.75/55,328.38
  6. Step 6: Final answer
    x = 43,416.55

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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.