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Finding the Fourth Proportional to 70,836.30, 97,703.55 and 45,661.50

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Solution

The fourth proportional to 70,836.30, 97,703.55 and 45,661.50 is: 62,980.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,836.30 : 97,703.55 = 45,661.50 : x
  2. Step 2: Convert to fraction form
    70,836.30/97,703.55 = 45,661.50/x
  3. Step 3: Cross multiply
    70,836.30x = 97,703.55 × 45,661.50
  4. Step 4: Simplify right side
    70,836.30x = 4,461,290,648.33
  5. Step 5: Solve for x
    x = 4,461,290,648.33/70,836.30
  6. Step 6: Final answer
    x = 62,980.29

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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.