Home / 81,448.84-112,396.68-45,148.76

Finding the Fourth Proportional to 81,448.84, 112,396.68 and 45,148.76

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Solution

The fourth proportional to 81,448.84, 112,396.68 and 45,148.76 is: 62,303.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,448.84 : 112,396.68 = 45,148.76 : x
  2. Step 2: Convert to fraction form
    81,448.84/112,396.68 = 45,148.76/x
  3. Step 3: Cross multiply
    81,448.84x = 112,396.68 × 45,148.76
  4. Step 4: Simplify right side
    81,448.84x = 5,074,570,730.12
  5. Step 5: Solve for x
    x = 5,074,570,730.12/81,448.84
  6. Step 6: Final answer
    x = 62,303.78

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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.