Home / 55,580.68-76,745.57-51,330.18

Finding the Fourth Proportional to 55,580.68, 76,745.57 and 51,330.18

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Solution

The fourth proportional to 55,580.68, 76,745.57 and 51,330.18 is: 70,876.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,580.68 : 76,745.57 = 51,330.18 : x
  2. Step 2: Convert to fraction form
    55,580.68/76,745.57 = 51,330.18/x
  3. Step 3: Cross multiply
    55,580.68x = 76,745.57 × 51,330.18
  4. Step 4: Simplify right side
    55,580.68x = 3,939,363,953.45
  5. Step 5: Solve for x
    x = 3,939,363,953.45/55,580.68
  6. Step 6: Final answer
    x = 70,876.50

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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.