Home / 55,792.08-76,993.20-30,643.20

Finding the Fourth Proportional to 55,792.08, 76,993.20 and 30,643.20

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Solution

The fourth proportional to 55,792.08, 76,993.20 and 30,643.20 is: 42,287.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,792.08 : 76,993.20 = 30,643.20 : x
  2. Step 2: Convert to fraction form
    55,792.08/76,993.20 = 30,643.20/x
  3. Step 3: Cross multiply
    55,792.08x = 76,993.20 × 30,643.20
  4. Step 4: Simplify right side
    55,792.08x = 2,359,318,026.24
  5. Step 5: Solve for x
    x = 2,359,318,026.24/55,792.08
  6. Step 6: Final answer
    x = 42,287.69

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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.