Home / 78,445.28-117,667.74-34,066.28

Finding the Fourth Proportional to 78,445.28, 117,667.74 and 34,066.28

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Solution

The fourth proportional to 78,445.28, 117,667.74 and 34,066.28 is: 51,099.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,445.28 : 117,667.74 = 34,066.28 : x
  2. Step 2: Convert to fraction form
    78,445.28/117,667.74 = 34,066.28/x
  3. Step 3: Cross multiply
    78,445.28x = 117,667.74 × 34,066.28
  4. Step 4: Simplify right side
    78,445.28x = 4,008,502,177.81
  5. Step 5: Solve for x
    x = 4,008,502,177.81/78,445.28
  6. Step 6: Final answer
    x = 51,099.34

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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.