Home / 60,316.32-90,441.60-20,870.16

Finding the Fourth Proportional to 60,316.32, 90,441.60 and 20,870.16

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Solution

The fourth proportional to 60,316.32, 90,441.60 and 20,870.16 is: 31,293.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,316.32 : 90,441.60 = 20,870.16 : x
  2. Step 2: Convert to fraction form
    60,316.32/90,441.60 = 20,870.16/x
  3. Step 3: Cross multiply
    60,316.32x = 90,441.60 × 20,870.16
  4. Step 4: Simplify right side
    60,316.32x = 1,887,530,662.66
  5. Step 5: Solve for x
    x = 1,887,530,662.66/60,316.32
  6. Step 6: Final answer
    x = 31,293.86

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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.