Home / 55,711.02-76,880.79-30,217.30

Finding the Fourth Proportional to 55,711.02, 76,880.79 and 30,217.30

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Solution

The fourth proportional to 55,711.02, 76,880.79 and 30,217.30 is: 41,699.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,711.02 : 76,880.79 = 30,217.30 : x
  2. Step 2: Convert to fraction form
    55,711.02/76,880.79 = 30,217.30/x
  3. Step 3: Cross multiply
    55,711.02x = 76,880.79 × 30,217.30
  4. Step 4: Simplify right side
    55,711.02x = 2,323,129,895.67
  5. Step 5: Solve for x
    x = 2,323,129,895.67/55,711.02
  6. Step 6: Final answer
    x = 41,699.65

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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.