Home / 86,857.47-130,223.52-58,707.81

Finding the Fourth Proportional to 86,857.47, 130,223.52 and 58,707.81

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Solution

The fourth proportional to 86,857.47, 130,223.52 and 58,707.81 is: 88,019.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,857.47 : 130,223.52 = 58,707.81 : x
  2. Step 2: Convert to fraction form
    86,857.47/130,223.52 = 58,707.81/x
  3. Step 3: Cross multiply
    86,857.47x = 130,223.52 × 58,707.81
  4. Step 4: Simplify right side
    86,857.47x = 7,645,137,669.69
  5. Step 5: Solve for x
    x = 7,645,137,669.69/86,857.47
  6. Step 6: Final answer
    x = 88,019.35

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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.