Home / 64,831.90-89,381.37-48,630.34

Finding the Fourth Proportional to 64,831.90, 89,381.37 and 48,630.34

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Solution

The fourth proportional to 64,831.90, 89,381.37 and 48,630.34 is: 67,044.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,831.90 : 89,381.37 = 48,630.34 : x
  2. Step 2: Convert to fraction form
    64,831.90/89,381.37 = 48,630.34/x
  3. Step 3: Cross multiply
    64,831.90x = 89,381.37 × 48,630.34
  4. Step 4: Simplify right side
    64,831.90x = 4,346,646,412.77
  5. Step 5: Solve for x
    x = 4,346,646,412.77/64,831.90
  6. Step 6: Final answer
    x = 67,044.87

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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.