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Finding the Fourth Proportional to 70,809.08, 97,749 and 50,404.40

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Solution

The fourth proportional to 70,809.08, 97,749 and 50,404.40 is: 69,581.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,809.08 : 97,749 = 50,404.40 : x
  2. Step 2: Convert to fraction form
    70,809.08/97,749 = 50,404.40/x
  3. Step 3: Cross multiply
    70,809.08x = 97,749 × 50,404.40
  4. Step 4: Simplify right side
    70,809.08x = 4,926,979,695.60
  5. Step 5: Solve for x
    x = 4,926,979,695.60/70,809.08
  6. Step 6: Final answer
    x = 69,581.19

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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.