Home / 89,026.40-133,345.20-53,904.80

Finding the Fourth Proportional to 89,026.40, 133,345.20 and 53,904.80

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Solution

The fourth proportional to 89,026.40, 133,345.20 and 53,904.80 is: 80,739.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,026.40 : 133,345.20 = 53,904.80 : x
  2. Step 2: Convert to fraction form
    89,026.40/133,345.20 = 53,904.80/x
  3. Step 3: Cross multiply
    89,026.40x = 133,345.20 × 53,904.80
  4. Step 4: Simplify right side
    89,026.40x = 7,187,946,336.96
  5. Step 5: Solve for x
    x = 7,187,946,336.96/89,026.40
  6. Step 6: Final answer
    x = 80,739.49

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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.