Home / 74,303.70-102,539.10-42,473.28

Finding the Fourth Proportional to 74,303.70, 102,539.10 and 42,473.28

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Solution

The fourth proportional to 74,303.70, 102,539.10 and 42,473.28 is: 58,613.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,303.70 : 102,539.10 = 42,473.28 : x
  2. Step 2: Convert to fraction form
    74,303.70/102,539.10 = 42,473.28/x
  3. Step 3: Cross multiply
    74,303.70x = 102,539.10 × 42,473.28
  4. Step 4: Simplify right side
    74,303.70x = 4,355,171,905.25
  5. Step 5: Solve for x
    x = 4,355,171,905.25/74,303.70
  6. Step 6: Final answer
    x = 58,613.12

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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.