Home / 77,270.71-115,601.10-58,603.45

Finding the Fourth Proportional to 77,270.71, 115,601.10 and 58,603.45

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Solution

The fourth proportional to 77,270.71, 115,601.10 and 58,603.45 is: 87,673.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,270.71 : 115,601.10 = 58,603.45 : x
  2. Step 2: Convert to fraction form
    77,270.71/115,601.10 = 58,603.45/x
  3. Step 3: Cross multiply
    77,270.71x = 115,601.10 × 58,603.45
  4. Step 4: Simplify right side
    77,270.71x = 6,774,623,283.80
  5. Step 5: Solve for x
    x = 6,774,623,283.80/77,270.71
  6. Step 6: Final answer
    x = 87,673.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.