Home / 93,831.10-129,488.79-51,389.63

Finding the Fourth Proportional to 93,831.10, 129,488.79 and 51,389.63

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Solution

The fourth proportional to 93,831.10, 129,488.79 and 51,389.63 is: 70,918.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,831.10 : 129,488.79 = 51,389.63 : x
  2. Step 2: Convert to fraction form
    93,831.10/129,488.79 = 51,389.63/x
  3. Step 3: Cross multiply
    93,831.10x = 129,488.79 × 51,389.63
  4. Step 4: Simplify right side
    93,831.10x = 6,654,381,007.25
  5. Step 5: Solve for x
    x = 6,654,381,007.25/93,831.10
  6. Step 6: Final answer
    x = 70,918.71

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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.