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Finding the Fourth Proportional to 67,653.60, 93,339.36 and 39,353.28

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Solution

The fourth proportional to 67,653.60, 93,339.36 and 39,353.28 is: 54,294.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,653.60 : 93,339.36 = 39,353.28 : x
  2. Step 2: Convert to fraction form
    67,653.60/93,339.36 = 39,353.28/x
  3. Step 3: Cross multiply
    67,653.60x = 93,339.36 × 39,353.28
  4. Step 4: Simplify right side
    67,653.60x = 3,673,209,969.10
  5. Step 5: Solve for x
    x = 3,673,209,969.10/67,653.60
  6. Step 6: Final answer
    x = 54,294.38

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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.