Home / 90,427.32-135,724.71-46,087.11

Finding the Fourth Proportional to 90,427.32, 135,724.71 and 46,087.11

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Solution

The fourth proportional to 90,427.32, 135,724.71 and 46,087.11 is: 69,173.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,427.32 : 135,724.71 = 46,087.11 : x
  2. Step 2: Convert to fraction form
    90,427.32/135,724.71 = 46,087.11/x
  3. Step 3: Cross multiply
    90,427.32x = 135,724.71 × 46,087.11
  4. Step 4: Simplify right side
    90,427.32x = 6,255,159,639.49
  5. Step 5: Solve for x
    x = 6,255,159,639.49/90,427.32
  6. Step 6: Final answer
    x = 69,173.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.