Home / 77,123.04-106,441.20-48,831.36

Finding the Fourth Proportional to 77,123.04, 106,441.20 and 48,831.36

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Solution

The fourth proportional to 77,123.04, 106,441.20 and 48,831.36 is: 67,394.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,123.04 : 106,441.20 = 48,831.36 : x
  2. Step 2: Convert to fraction form
    77,123.04/106,441.20 = 48,831.36/x
  3. Step 3: Cross multiply
    77,123.04x = 106,441.20 × 48,831.36
  4. Step 4: Simplify right side
    77,123.04x = 5,197,668,556.03
  5. Step 5: Solve for x
    x = 5,197,668,556.03/77,123.04
  6. Step 6: Final answer
    x = 67,394.50

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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.