Home / 48,490.89-72,736.34-13,430.55

Finding the Fourth Proportional to 48,490.89, 72,736.34 and 13,430.55

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Solution

The fourth proportional to 48,490.89, 72,736.34 and 13,430.55 is: 20,145.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,490.89 : 72,736.34 = 13,430.55 : x
  2. Step 2: Convert to fraction form
    48,490.89/72,736.34 = 13,430.55/x
  3. Step 3: Cross multiply
    48,490.89x = 72,736.34 × 13,430.55
  4. Step 4: Simplify right side
    48,490.89x = 976,889,051.19
  5. Step 5: Solve for x
    x = 976,889,051.19/48,490.89
  6. Step 6: Final answer
    x = 20,145.83

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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.