Home / 76,715.04-105,864.48-43,180.32

Finding the Fourth Proportional to 76,715.04, 105,864.48 and 43,180.32

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Solution

The fourth proportional to 76,715.04, 105,864.48 and 43,180.32 is: 59,587.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,715.04 : 105,864.48 = 43,180.32 : x
  2. Step 2: Convert to fraction form
    76,715.04/105,864.48 = 43,180.32/x
  3. Step 3: Cross multiply
    76,715.04x = 105,864.48 × 43,180.32
  4. Step 4: Simplify right side
    76,715.04x = 4,571,262,123.03
  5. Step 5: Solve for x
    x = 4,571,262,123.03/76,715.04
  6. Step 6: Final answer
    x = 59,587.56

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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.