Home / 78,845.60-118,268.40-53,962.40

Finding the Fourth Proportional to 78,845.60, 118,268.40 and 53,962.40

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Solution

The fourth proportional to 78,845.60, 118,268.40 and 53,962.40 is: 80,943.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,845.60 : 118,268.40 = 53,962.40 : x
  2. Step 2: Convert to fraction form
    78,845.60/118,268.40 = 53,962.40/x
  3. Step 3: Cross multiply
    78,845.60x = 118,268.40 × 53,962.40
  4. Step 4: Simplify right side
    78,845.60x = 6,382,046,708.16
  5. Step 5: Solve for x
    x = 6,382,046,708.16/78,845.60
  6. Step 6: Final answer
    x = 80,943.60

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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.