Home / 74,051.19-102,196.13-42,220.89

Finding the Fourth Proportional to 74,051.19, 102,196.13 and 42,220.89

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Solution

The fourth proportional to 74,051.19, 102,196.13 and 42,220.89 is: 58,267.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,051.19 : 102,196.13 = 42,220.89 : x
  2. Step 2: Convert to fraction form
    74,051.19/102,196.13 = 42,220.89/x
  3. Step 3: Cross multiply
    74,051.19x = 102,196.13 × 42,220.89
  4. Step 4: Simplify right side
    74,051.19x = 4,314,811,352.05
  5. Step 5: Solve for x
    x = 4,314,811,352.05/74,051.19
  6. Step 6: Final answer
    x = 58,267.95

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Double scale
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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.