Home / 67,378.84-101,068.50-20,631.52

Finding the Fourth Proportional to 67,378.84, 101,068.50 and 20,631.52

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Solution

The fourth proportional to 67,378.84, 101,068.50 and 20,631.52 is: 30,947.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,378.84 : 101,068.50 = 20,631.52 : x
  2. Step 2: Convert to fraction form
    67,378.84/101,068.50 = 20,631.52/x
  3. Step 3: Cross multiply
    67,378.84x = 101,068.50 × 20,631.52
  4. Step 4: Simplify right side
    67,378.84x = 2,085,196,779.12
  5. Step 5: Solve for x
    x = 2,085,196,779.12/67,378.84
  6. Step 6: Final answer
    x = 30,947.35

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1.5x scale

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.