Home / 90,904.47-125,451.87-50,615.68

Finding the Fourth Proportional to 90,904.47, 125,451.87 and 50,615.68

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Solution

The fourth proportional to 90,904.47, 125,451.87 and 50,615.68 is: 69,851.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,904.47 : 125,451.87 = 50,615.68 : x
  2. Step 2: Convert to fraction form
    90,904.47/125,451.87 = 50,615.68/x
  3. Step 3: Cross multiply
    90,904.47x = 125,451.87 × 50,615.68
  4. Step 4: Simplify right side
    90,904.47x = 6,349,831,550.51
  5. Step 5: Solve for x
    x = 6,349,831,550.51/90,904.47
  6. Step 6: Final answer
    x = 69,851.70

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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.