Home / 74,401.04-102,678.36-42,579.92

Finding the Fourth Proportional to 74,401.04, 102,678.36 and 42,579.92

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Solution

The fourth proportional to 74,401.04, 102,678.36 and 42,579.92 is: 58,763.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,401.04 : 102,678.36 = 42,579.92 : x
  2. Step 2: Convert to fraction form
    74,401.04/102,678.36 = 42,579.92/x
  3. Step 3: Cross multiply
    74,401.04x = 102,678.36 × 42,579.92
  4. Step 4: Simplify right side
    74,401.04x = 4,372,036,354.53
  5. Step 5: Solve for x
    x = 4,372,036,354.53/74,401.04
  6. Step 6: Final answer
    x = 58,763.11

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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.