Home / 75,870.08-114,054.42-70,389.62

Finding the Fourth Proportional to 75,870.08, 114,054.42 and 70,389.62

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Solution

The fourth proportional to 75,870.08, 114,054.42 and 70,389.62 is: 105,815.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,870.08 : 114,054.42 = 70,389.62 : x
  2. Step 2: Convert to fraction form
    75,870.08/114,054.42 = 70,389.62/x
  3. Step 3: Cross multiply
    75,870.08x = 114,054.42 × 70,389.62
  4. Step 4: Simplify right side
    75,870.08x = 8,028,247,283.12
  5. Step 5: Solve for x
    x = 8,028,247,283.12/75,870.08
  6. Step 6: Final answer
    x = 105,815.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.