Home / 86,984.08-120,035.99-51,176.40

Finding the Fourth Proportional to 86,984.08, 120,035.99 and 51,176.40

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Solution

The fourth proportional to 86,984.08, 120,035.99 and 51,176.40 is: 70,622.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,984.08 : 120,035.99 = 51,176.40 : x
  2. Step 2: Convert to fraction form
    86,984.08/120,035.99 = 51,176.40/x
  3. Step 3: Cross multiply
    86,984.08x = 120,035.99 × 51,176.40
  4. Step 4: Simplify right side
    86,984.08x = 6,143,009,838.64
  5. Step 5: Solve for x
    x = 6,143,009,838.64/86,984.08
  6. Step 6: Final answer
    x = 70,622.23

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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.