Home / 77,448.08-106,873.92-42,991.04

Finding the Fourth Proportional to 77,448.08, 106,873.92 and 42,991.04

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Solution

The fourth proportional to 77,448.08, 106,873.92 and 42,991.04 is: 59,325.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,448.08 : 106,873.92 = 42,991.04 : x
  2. Step 2: Convert to fraction form
    77,448.08/106,873.92 = 42,991.04/x
  3. Step 3: Cross multiply
    77,448.08x = 106,873.92 × 42,991.04
  4. Step 4: Simplify right side
    77,448.08x = 4,594,620,969.68
  5. Step 5: Solve for x
    x = 4,594,620,969.68/77,448.08
  6. Step 6: Final answer
    x = 59,325.18

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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.