Home / 55,355.68-76,388.70-30,205.18

Finding the Fourth Proportional to 55,355.68, 76,388.70 and 30,205.18

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Solution

The fourth proportional to 55,355.68, 76,388.70 and 30,205.18 is: 41,681.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,355.68 : 76,388.70 = 30,205.18 : x
  2. Step 2: Convert to fraction form
    55,355.68/76,388.70 = 30,205.18/x
  3. Step 3: Cross multiply
    55,355.68x = 76,388.70 × 30,205.18
  4. Step 4: Simplify right side
    55,355.68x = 2,307,334,433.47
  5. Step 5: Solve for x
    x = 2,307,334,433.47/55,355.68
  6. Step 6: Final answer
    x = 41,681.98

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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.