Home / 76,569.12-105,674.88-43,035.12

Finding the Fourth Proportional to 76,569.12, 105,674.88 and 43,035.12

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Solution

The fourth proportional to 76,569.12, 105,674.88 and 43,035.12 is: 59,393.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,569.12 : 105,674.88 = 43,035.12 : x
  2. Step 2: Convert to fraction form
    76,569.12/105,674.88 = 43,035.12/x
  3. Step 3: Cross multiply
    76,569.12x = 105,674.88 × 43,035.12
  4. Step 4: Simplify right side
    76,569.12x = 4,547,731,141.79
  5. Step 5: Solve for x
    x = 4,547,731,141.79/76,569.12
  6. Step 6: Final answer
    x = 59,393.80

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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.