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Finding the Fourth Proportional to 64,673.20, 97,009.80 and 54,831.70

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Solution

The fourth proportional to 64,673.20, 97,009.80 and 54,831.70 is: 82,247.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,673.20 : 97,009.80 = 54,831.70 : x
  2. Step 2: Convert to fraction form
    64,673.20/97,009.80 = 54,831.70/x
  3. Step 3: Cross multiply
    64,673.20x = 97,009.80 × 54,831.70
  4. Step 4: Simplify right side
    64,673.20x = 5,319,212,250.66
  5. Step 5: Solve for x
    x = 5,319,212,250.66/64,673.20
  6. Step 6: Final answer
    x = 82,247.55

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1.5x scale

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.