Home / 90,740.48-136,138.36-46,398.38

Finding the Fourth Proportional to 90,740.48, 136,138.36 and 46,398.38

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Solution

The fourth proportional to 90,740.48, 136,138.36 and 46,398.38 is: 69,611.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,740.48 : 136,138.36 = 46,398.38 : x
  2. Step 2: Convert to fraction form
    90,740.48/136,138.36 = 46,398.38/x
  3. Step 3: Cross multiply
    90,740.48x = 136,138.36 × 46,398.38
  4. Step 4: Simplify right side
    90,740.48x = 6,316,599,359.86
  5. Step 5: Solve for x
    x = 6,316,599,359.86/90,740.48
  6. Step 6: Final answer
    x = 69,611.70

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1.5x scale

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.