Home / 55,730.24-76,907.52-30,580.16

Finding the Fourth Proportional to 55,730.24, 76,907.52 and 30,580.16

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Solution

The fourth proportional to 55,730.24, 76,907.52 and 30,580.16 is: 42,200.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,730.24 : 76,907.52 = 30,580.16 : x
  2. Step 2: Convert to fraction form
    55,730.24/76,907.52 = 30,580.16/x
  3. Step 3: Cross multiply
    55,730.24x = 76,907.52 × 30,580.16
  4. Step 4: Simplify right side
    55,730.24x = 2,351,844,266.80
  5. Step 5: Solve for x
    x = 2,351,844,266.80/55,730.24
  6. Step 6: Final answer
    x = 42,200.50

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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.