Home / 55,880.86-77,115.40-31,351.71

Finding the Fourth Proportional to 55,880.86, 77,115.40 and 31,351.71

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Solution

The fourth proportional to 55,880.86, 77,115.40 and 31,351.71 is: 43,265.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,880.86 : 77,115.40 = 31,351.71 : x
  2. Step 2: Convert to fraction form
    55,880.86/77,115.40 = 31,351.71/x
  3. Step 3: Cross multiply
    55,880.86x = 77,115.40 × 31,351.71
  4. Step 4: Simplify right side
    55,880.86x = 2,417,699,657.33
  5. Step 5: Solve for x
    x = 2,417,699,657.33/55,880.86
  6. Step 6: Final answer
    x = 43,265.25

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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.