Home / 90,867.32-125,392.56-55,055.06

Finding the Fourth Proportional to 90,867.32, 125,392.56 and 55,055.06

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Solution

The fourth proportional to 90,867.32, 125,392.56 and 55,055.06 is: 75,973.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,867.32 : 125,392.56 = 55,055.06 : x
  2. Step 2: Convert to fraction form
    90,867.32/125,392.56 = 55,055.06/x
  3. Step 3: Cross multiply
    90,867.32x = 125,392.56 × 55,055.06
  4. Step 4: Simplify right side
    90,867.32x = 6,903,494,914.35
  5. Step 5: Solve for x
    x = 6,903,494,914.35/90,867.32
  6. Step 6: Final answer
    x = 75,973.35

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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.