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Finding the Fourth Proportional to 60,490.90, 90,754.81 and 30,929.50

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Solution

The fourth proportional to 60,490.90, 90,754.81 and 30,929.50 is: 46,403.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,490.90 : 90,754.81 = 30,929.50 : x
  2. Step 2: Convert to fraction form
    60,490.90/90,754.81 = 30,929.50/x
  3. Step 3: Cross multiply
    60,490.90x = 90,754.81 × 30,929.50
  4. Step 4: Simplify right side
    60,490.90x = 2,807,000,595.50
  5. Step 5: Solve for x
    x = 2,807,000,595.50/60,490.90
  6. Step 6: Final answer
    x = 46,403.68

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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.