Home / 55,081.74-76,012.88-31,210.02

Finding the Fourth Proportional to 55,081.74, 76,012.88 and 31,210.02

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Solution

The fourth proportional to 55,081.74, 76,012.88 and 31,210.02 is: 43,069.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,081.74 : 76,012.88 = 31,210.02 : x
  2. Step 2: Convert to fraction form
    55,081.74/76,012.88 = 31,210.02/x
  3. Step 3: Cross multiply
    55,081.74x = 76,012.88 × 31,210.02
  4. Step 4: Simplify right side
    55,081.74x = 2,372,363,349.01
  5. Step 5: Solve for x
    x = 2,372,363,349.01/55,081.74
  6. Step 6: Final answer
    x = 43,069.87

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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.