Home / 79,619.28-109,870.47-43,812.60

Finding the Fourth Proportional to 79,619.28, 109,870.47 and 43,812.60

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Solution

The fourth proportional to 79,619.28, 109,870.47 and 43,812.60 is: 60,459.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,619.28 : 109,870.47 = 43,812.60 : x
  2. Step 2: Convert to fraction form
    79,619.28/109,870.47 = 43,812.60/x
  3. Step 3: Cross multiply
    79,619.28x = 109,870.47 × 43,812.60
  4. Step 4: Simplify right side
    79,619.28x = 4,813,710,953.92
  5. Step 5: Solve for x
    x = 4,813,710,953.92/79,619.28
  6. Step 6: Final answer
    x = 60,459.11

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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.