Home / 86,929.64-119,963.40-51,121.16

Finding the Fourth Proportional to 86,929.64, 119,963.40 and 51,121.16

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Solution

The fourth proportional to 86,929.64, 119,963.40 and 51,121.16 is: 70,547.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,929.64 : 119,963.40 = 51,121.16 : x
  2. Step 2: Convert to fraction form
    86,929.64/119,963.40 = 51,121.16/x
  3. Step 3: Cross multiply
    86,929.64x = 119,963.40 × 51,121.16
  4. Step 4: Simplify right side
    86,929.64x = 6,132,668,165.54
  5. Step 5: Solve for x
    x = 6,132,668,165.54/86,929.64
  6. Step 6: Final answer
    x = 70,547.49

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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.