Home / 109,329.28-163,959.36-35,440

Finding the Fourth Proportional to 109,329.28, 163,959.36 and 35,440

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Solution

The fourth proportional to 109,329.28, 163,959.36 and 35,440 is: 53,148.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,329.28 : 163,959.36 = 35,440 : x
  2. Step 2: Convert to fraction form
    109,329.28/163,959.36 = 35,440/x
  3. Step 3: Cross multiply
    109,329.28x = 163,959.36 × 35,440
  4. Step 4: Simplify right side
    109,329.28x = 5,810,719,718.40
  5. Step 5: Solve for x
    x = 5,810,719,718.40/109,329.28
  6. Step 6: Final answer
    x = 53,148.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.