Home / 78,785.04-118,177.56-19,622.64

Finding the Fourth Proportional to 78,785.04, 118,177.56 and 19,622.64

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Solution

The fourth proportional to 78,785.04, 118,177.56 and 19,622.64 is: 29,433.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,785.04 : 118,177.56 = 19,622.64 : x
  2. Step 2: Convert to fraction form
    78,785.04/118,177.56 = 19,622.64/x
  3. Step 3: Cross multiply
    78,785.04x = 118,177.56 × 19,622.64
  4. Step 4: Simplify right side
    78,785.04x = 2,318,955,715.96
  5. Step 5: Solve for x
    x = 2,318,955,715.96/78,785.04
  6. Step 6: Final answer
    x = 29,433.96

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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.