Home / 70,629.16-105,988.38-39,484.84

Finding the Fourth Proportional to 70,629.16, 105,988.38 and 39,484.84

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Solution

The fourth proportional to 70,629.16, 105,988.38 and 39,484.84 is: 59,252.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,629.16 : 105,988.38 = 39,484.84 : x
  2. Step 2: Convert to fraction form
    70,629.16/105,988.38 = 39,484.84/x
  3. Step 3: Cross multiply
    70,629.16x = 105,988.38 × 39,484.84
  4. Step 4: Simplify right side
    70,629.16x = 4,184,934,226.16
  5. Step 5: Solve for x
    x = 4,184,934,226.16/70,629.16
  6. Step 6: Final answer
    x = 59,252.22

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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.