Home / 76,580.56-105,680.04-43,046.32

Finding the Fourth Proportional to 76,580.56, 105,680.04 and 43,046.32

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Solution

The fourth proportional to 76,580.56, 105,680.04 and 43,046.32 is: 59,403.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,580.56 : 105,680.04 = 43,046.32 : x
  2. Step 2: Convert to fraction form
    76,580.56/105,680.04 = 43,046.32/x
  3. Step 3: Cross multiply
    76,580.56x = 105,680.04 × 43,046.32
  4. Step 4: Simplify right side
    76,580.56x = 4,549,136,819.45
  5. Step 5: Solve for x
    x = 4,549,136,819.45/76,580.56
  6. Step 6: Final answer
    x = 59,403.28

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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.