Home / 55,641.49-76,811.87-31,763.55

Finding the Fourth Proportional to 55,641.49, 76,811.87 and 31,763.55

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Solution

The fourth proportional to 55,641.49, 76,811.87 and 31,763.55 is: 43,848.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,641.49 : 76,811.87 = 31,763.55 : x
  2. Step 2: Convert to fraction form
    55,641.49/76,811.87 = 31,763.55/x
  3. Step 3: Cross multiply
    55,641.49x = 76,811.87 × 31,763.55
  4. Step 4: Simplify right side
    55,641.49x = 2,439,817,673.34
  5. Step 5: Solve for x
    x = 2,439,817,673.34/55,641.49
  6. Step 6: Final answer
    x = 43,848.89

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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.