Home / 76,326.26-105,329.54-42,334.81

Finding the Fourth Proportional to 76,326.26, 105,329.54 and 42,334.81

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Solution

The fourth proportional to 76,326.26, 105,329.54 and 42,334.81 is: 58,421.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,326.26 : 105,329.54 = 42,334.81 : x
  2. Step 2: Convert to fraction form
    76,326.26/105,329.54 = 42,334.81/x
  3. Step 3: Cross multiply
    76,326.26x = 105,329.54 × 42,334.81
  4. Step 4: Simplify right side
    76,326.26x = 4,459,105,588.29
  5. Step 5: Solve for x
    x = 4,459,105,588.29/76,326.26
  6. Step 6: Final answer
    x = 58,421.65

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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.