Home / 92,831.13-128,109.60-50,392.40

Finding the Fourth Proportional to 92,831.13, 128,109.60 and 50,392.40

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Solution

The fourth proportional to 92,831.13, 128,109.60 and 50,392.40 is: 69,542.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,831.13 : 128,109.60 = 50,392.40 : x
  2. Step 2: Convert to fraction form
    92,831.13/128,109.60 = 50,392.40/x
  3. Step 3: Cross multiply
    92,831.13x = 128,109.60 × 50,392.40
  4. Step 4: Simplify right side
    92,831.13x = 6,455,749,566.49
  5. Step 5: Solve for x
    x = 6,455,749,566.49/92,831.13
  6. Step 6: Final answer
    x = 69,542.94

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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.