Home / 74,143.62-102,325.50-42,317.28

Finding the Fourth Proportional to 74,143.62, 102,325.50 and 42,317.28

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Solution

The fourth proportional to 74,143.62, 102,325.50 and 42,317.28 is: 58,402.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,143.62 : 102,325.50 = 42,317.28 : x
  2. Step 2: Convert to fraction form
    74,143.62/102,325.50 = 42,317.28/x
  3. Step 3: Cross multiply
    74,143.62x = 102,325.50 × 42,317.28
  4. Step 4: Simplify right side
    74,143.62x = 4,330,136,834.64
  5. Step 5: Solve for x
    x = 4,330,136,834.64/74,143.62
  6. Step 6: Final answer
    x = 58,402.02

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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.