Home / 66,221.28-99,331.80-46,587.60

Finding the Fourth Proportional to 66,221.28, 99,331.80 and 46,587.60

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Solution

The fourth proportional to 66,221.28, 99,331.80 and 46,587.60 is: 69,881.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,221.28 : 99,331.80 = 46,587.60 : x
  2. Step 2: Convert to fraction form
    66,221.28/99,331.80 = 46,587.60/x
  3. Step 3: Cross multiply
    66,221.28x = 99,331.80 × 46,587.60
  4. Step 4: Simplify right side
    66,221.28x = 4,627,630,165.68
  5. Step 5: Solve for x
    x = 4,627,630,165.68/66,221.28
  6. Step 6: Final answer
    x = 69,881.32

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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.