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Finding the Fourth Proportional to 97,020.40, 145,511.40 and 47,100.40

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Solution

The fourth proportional to 97,020.40, 145,511.40 and 47,100.40 is: 70,641.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,020.40 : 145,511.40 = 47,100.40 : x
  2. Step 2: Convert to fraction form
    97,020.40/145,511.40 = 47,100.40/x
  3. Step 3: Cross multiply
    97,020.40x = 145,511.40 × 47,100.40
  4. Step 4: Simplify right side
    97,020.40x = 6,853,645,144.56
  5. Step 5: Solve for x
    x = 6,853,645,144.56/97,020.40
  6. Step 6: Final answer
    x = 70,641.28

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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.