Home / 90,740.72-136,138.79-46,398.62

Finding the Fourth Proportional to 90,740.72, 136,138.79 and 46,398.62

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Solution

The fourth proportional to 90,740.72, 136,138.79 and 46,398.62 is: 69,612.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,740.72 : 136,138.79 = 46,398.62 : x
  2. Step 2: Convert to fraction form
    90,740.72/136,138.79 = 46,398.62/x
  3. Step 3: Cross multiply
    90,740.72x = 136,138.79 × 46,398.62
  4. Step 4: Simplify right side
    90,740.72x = 6,316,652,440.81
  5. Step 5: Solve for x
    x = 6,316,652,440.81/90,740.72
  6. Step 6: Final answer
    x = 69,612.10

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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.