Home / 74,980.10-103,475.68-43,149.14

Finding the Fourth Proportional to 74,980.10, 103,475.68 and 43,149.14

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Solution

The fourth proportional to 74,980.10, 103,475.68 and 43,149.14 is: 59,547.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,980.10 : 103,475.68 = 43,149.14 : x
  2. Step 2: Convert to fraction form
    74,980.10/103,475.68 = 43,149.14/x
  3. Step 3: Cross multiply
    74,980.10x = 103,475.68 × 43,149.14
  4. Step 4: Simplify right side
    74,980.10x = 4,464,886,602.92
  5. Step 5: Solve for x
    x = 4,464,886,602.92/74,980.10
  6. Step 6: Final answer
    x = 59,547.62

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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.