Home / 74,320.72-102,564.36-42,492.60

Finding the Fourth Proportional to 74,320.72, 102,564.36 and 42,492.60

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Solution

The fourth proportional to 74,320.72, 102,564.36 and 42,492.60 is: 58,640.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,320.72 : 102,564.36 = 42,492.60 : x
  2. Step 2: Convert to fraction form
    74,320.72/102,564.36 = 42,492.60/x
  3. Step 3: Cross multiply
    74,320.72x = 102,564.36 × 42,492.60
  4. Step 4: Simplify right side
    74,320.72x = 4,358,226,323.74
  5. Step 5: Solve for x
    x = 4,358,226,323.74/74,320.72
  6. Step 6: Final answer
    x = 58,640.80

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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.