Home / 74,156.84-102,343.77-42,330.52

Finding the Fourth Proportional to 74,156.84, 102,343.77 and 42,330.52

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Solution

The fourth proportional to 74,156.84, 102,343.77 and 42,330.52 is: 58,420.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,156.84 : 102,343.77 = 42,330.52 : x
  2. Step 2: Convert to fraction form
    74,156.84/102,343.77 = 42,330.52/x
  3. Step 3: Cross multiply
    74,156.84x = 102,343.77 × 42,330.52
  4. Step 4: Simplify right side
    74,156.84x = 4,332,264,747.00
  5. Step 5: Solve for x
    x = 4,332,264,747.00/74,156.84
  6. Step 6: Final answer
    x = 58,420.30

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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.