Home / 55,784.16-76,983.48-30,634.20

Finding the Fourth Proportional to 55,784.16, 76,983.48 and 30,634.20

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Solution

The fourth proportional to 55,784.16, 76,983.48 and 30,634.20 is: 42,275.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,784.16 : 76,983.48 = 30,634.20 : x
  2. Step 2: Convert to fraction form
    55,784.16/76,983.48 = 30,634.20/x
  3. Step 3: Cross multiply
    55,784.16x = 76,983.48 × 30,634.20
  4. Step 4: Simplify right side
    55,784.16x = 2,358,327,323.02
  5. Step 5: Solve for x
    x = 2,358,327,323.02/55,784.16
  6. Step 6: Final answer
    x = 42,275.93

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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.