Home / 76,815.04-106,005.60-43,280.32

Finding the Fourth Proportional to 76,815.04, 106,005.60 and 43,280.32

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Solution

The fourth proportional to 76,815.04, 106,005.60 and 43,280.32 is: 59,727.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,815.04 : 106,005.60 = 43,280.32 : x
  2. Step 2: Convert to fraction form
    76,815.04/106,005.60 = 43,280.32/x
  3. Step 3: Cross multiply
    76,815.04x = 106,005.60 × 43,280.32
  4. Step 4: Simplify right side
    76,815.04x = 4,587,956,289.79
  5. Step 5: Solve for x
    x = 4,587,956,289.79/76,815.04
  6. Step 6: Final answer
    x = 59,727.32

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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.