Home / 55,962.60-77,228.20-30,812.08

Finding the Fourth Proportional to 55,962.60, 77,228.20 and 30,812.08

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Solution

The fourth proportional to 55,962.60, 77,228.20 and 30,812.08 is: 42,520.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,962.60 : 77,228.20 = 30,812.08 : x
  2. Step 2: Convert to fraction form
    55,962.60/77,228.20 = 30,812.08/x
  3. Step 3: Cross multiply
    55,962.60x = 77,228.20 × 30,812.08
  4. Step 4: Simplify right side
    55,962.60x = 2,379,561,476.66
  5. Step 5: Solve for x
    x = 2,379,561,476.66/55,962.60
  6. Step 6: Final answer
    x = 42,520.57

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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.