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Finding the Fourth Proportional to 63,643.92, 87,831.72 and 35,349

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Solution

The fourth proportional to 63,643.92, 87,831.72 and 35,349 is: 48,783.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,643.92 : 87,831.72 = 35,349 : x
  2. Step 2: Convert to fraction form
    63,643.92/87,831.72 = 35,349/x
  3. Step 3: Cross multiply
    63,643.92x = 87,831.72 × 35,349
  4. Step 4: Simplify right side
    63,643.92x = 3,104,763,470.28
  5. Step 5: Solve for x
    x = 3,104,763,470.28/63,643.92
  6. Step 6: Final answer
    x = 48,783.35

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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.