Home / 76,316.89-105,328.07-42,332.94

Finding the Fourth Proportional to 76,316.89, 105,328.07 and 42,332.94

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Solution

The fourth proportional to 76,316.89, 105,328.07 and 42,332.94 is: 58,425.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,316.89 : 105,328.07 = 42,332.94 : x
  2. Step 2: Convert to fraction form
    76,316.89/105,328.07 = 42,332.94/x
  3. Step 3: Cross multiply
    76,316.89x = 105,328.07 × 42,332.94
  4. Step 4: Simplify right side
    76,316.89x = 4,458,846,867.63
  5. Step 5: Solve for x
    x = 4,458,846,867.63/76,316.89
  6. Step 6: Final answer
    x = 58,425.43

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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.