Home / 55,660.47-76,823.04-51,177.12

Finding the Fourth Proportional to 55,660.47, 76,823.04 and 51,177.12

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Solution

The fourth proportional to 55,660.47, 76,823.04 and 51,177.12 is: 70,635.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,660.47 : 76,823.04 = 51,177.12 : x
  2. Step 2: Convert to fraction form
    55,660.47/76,823.04 = 51,177.12/x
  3. Step 3: Cross multiply
    55,660.47x = 76,823.04 × 51,177.12
  4. Step 4: Simplify right side
    55,660.47x = 3,931,581,936.84
  5. Step 5: Solve for x
    x = 3,931,581,936.84/55,660.47
  6. Step 6: Final answer
    x = 70,635.08

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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.