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Finding the Fourth Proportional to 62,645.40, 87,820.20 and 62,645.40

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Solution

The fourth proportional to 62,645.40, 87,820.20 and 62,645.40 is: 87,820.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,645.40 : 87,820.20 = 62,645.40 : x
  2. Step 2: Convert to fraction form
    62,645.40/87,820.20 = 62,645.40/x
  3. Step 3: Cross multiply
    62,645.40x = 87,820.20 × 62,645.40
  4. Step 4: Simplify right side
    62,645.40x = 5,501,531,557.08
  5. Step 5: Solve for x
    x = 5,501,531,557.08/62,645.40
  6. Step 6: Final answer
    x = 87,820.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.