Home / 86,630.40-119,548.65-48,390.57

Finding the Fourth Proportional to 86,630.40, 119,548.65 and 48,390.57

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Solution

The fourth proportional to 86,630.40, 119,548.65 and 48,390.57 is: 66,778.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,630.40 : 119,548.65 = 48,390.57 : x
  2. Step 2: Convert to fraction form
    86,630.40/119,548.65 = 48,390.57/x
  3. Step 3: Cross multiply
    86,630.40x = 119,548.65 × 48,390.57
  4. Step 4: Simplify right side
    86,630.40x = 5,785,027,316.23
  5. Step 5: Solve for x
    x = 5,785,027,316.23/86,630.40
  6. Step 6: Final answer
    x = 66,778.26

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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.