Home / 55,376.84-76,412.90-31,174.74

Finding the Fourth Proportional to 55,376.84, 76,412.90 and 31,174.74

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Solution

The fourth proportional to 55,376.84, 76,412.90 and 31,174.74 is: 43,017.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,376.84 : 76,412.90 = 31,174.74 : x
  2. Step 2: Convert to fraction form
    55,376.84/76,412.90 = 31,174.74/x
  3. Step 3: Cross multiply
    55,376.84x = 76,412.90 × 31,174.74
  4. Step 4: Simplify right side
    55,376.84x = 2,382,152,290.15
  5. Step 5: Solve for x
    x = 2,382,152,290.15/55,376.84
  6. Step 6: Final answer
    x = 43,017.12

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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.