Home / 55,785.16-76,984.02-30,634.84

Finding the Fourth Proportional to 55,785.16, 76,984.02 and 30,634.84

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Solution

The fourth proportional to 55,785.16, 76,984.02 and 30,634.84 is: 42,276.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,785.16 : 76,984.02 = 30,634.84 : x
  2. Step 2: Convert to fraction form
    55,785.16/76,984.02 = 30,634.84/x
  3. Step 3: Cross multiply
    55,785.16x = 76,984.02 × 30,634.84
  4. Step 4: Simplify right side
    55,785.16x = 2,358,393,135.26
  5. Step 5: Solve for x
    x = 2,358,393,135.26/55,785.16
  6. Step 6: Final answer
    x = 42,276.35

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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.