Home / 90,968.04-136,424.52-31,792.68

Finding the Fourth Proportional to 90,968.04, 136,424.52 and 31,792.68

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Solution

The fourth proportional to 90,968.04, 136,424.52 and 31,792.68 is: 47,679.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,968.04 : 136,424.52 = 31,792.68 : x
  2. Step 2: Convert to fraction form
    90,968.04/136,424.52 = 31,792.68/x
  3. Step 3: Cross multiply
    90,968.04x = 136,424.52 × 31,792.68
  4. Step 4: Simplify right side
    90,968.04x = 4,337,301,108.51
  5. Step 5: Solve for x
    x = 4,337,301,108.51/90,968.04
  6. Step 6: Final answer
    x = 47,679.39

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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.