Home / 86,823.59-119,831.90-51,013.58

Finding the Fourth Proportional to 86,823.59, 119,831.90 and 51,013.58

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Solution

The fourth proportional to 86,823.59, 119,831.90 and 51,013.58 is: 70,407.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,823.59 : 119,831.90 = 51,013.58 : x
  2. Step 2: Convert to fraction form
    86,823.59/119,831.90 = 51,013.58/x
  3. Step 3: Cross multiply
    86,823.59x = 119,831.90 × 51,013.58
  4. Step 4: Simplify right side
    86,823.59x = 6,113,053,362.97
  5. Step 5: Solve for x
    x = 6,113,053,362.97/86,823.59
  6. Step 6: Final answer
    x = 70,407.75

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1.5x scale

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.