Home / 86,923.78-130,220.16-49,509.69

Finding the Fourth Proportional to 86,923.78, 130,220.16 and 49,509.69

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Solution

The fourth proportional to 86,923.78, 130,220.16 and 49,509.69 is: 74,170.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,923.78 : 130,220.16 = 49,509.69 : x
  2. Step 2: Convert to fraction form
    86,923.78/130,220.16 = 49,509.69/x
  3. Step 3: Cross multiply
    86,923.78x = 130,220.16 × 49,509.69
  4. Step 4: Simplify right side
    86,923.78x = 6,447,159,753.35
  5. Step 5: Solve for x
    x = 6,447,159,753.35/86,923.78
  6. Step 6: Final answer
    x = 74,170.26

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1.5x scale

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.