Home / 72,813.62-100,431.03-48,602.37

Finding the Fourth Proportional to 72,813.62, 100,431.03 and 48,602.37

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Solution

The fourth proportional to 72,813.62, 100,431.03 and 48,602.37 is: 67,036.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,813.62 : 100,431.03 = 48,602.37 : x
  2. Step 2: Convert to fraction form
    72,813.62/100,431.03 = 48,602.37/x
  3. Step 3: Cross multiply
    72,813.62x = 100,431.03 × 48,602.37
  4. Step 4: Simplify right side
    72,813.62x = 4,881,186,456.74
  5. Step 5: Solve for x
    x = 4,881,186,456.74/72,813.62
  6. Step 6: Final answer
    x = 67,036.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.