Home / 72,420.48-99,920.45-43,337.14

Finding the Fourth Proportional to 72,420.48, 99,920.45 and 43,337.14

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Solution

The fourth proportional to 72,420.48, 99,920.45 and 43,337.14 is: 59,793.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,420.48 : 99,920.45 = 43,337.14 : x
  2. Step 2: Convert to fraction form
    72,420.48/99,920.45 = 43,337.14/x
  3. Step 3: Cross multiply
    72,420.48x = 99,920.45 × 43,337.14
  4. Step 4: Simplify right side
    72,420.48x = 4,330,265,922.57
  5. Step 5: Solve for x
    x = 4,330,265,922.57/72,420.48
  6. Step 6: Final answer
    x = 59,793.39

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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.