Home / 72,420.60-99,753.48-51,162.96

Finding the Fourth Proportional to 72,420.60, 99,753.48 and 51,162.96

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Solution

The fourth proportional to 72,420.60, 99,753.48 and 51,162.96 is: 70,472.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,420.60 : 99,753.48 = 51,162.96 : x
  2. Step 2: Convert to fraction form
    72,420.60/99,753.48 = 51,162.96/x
  3. Step 3: Cross multiply
    72,420.60x = 99,753.48 × 51,162.96
  4. Step 4: Simplify right side
    72,420.60x = 5,103,683,307.10
  5. Step 5: Solve for x
    x = 5,103,683,307.10/72,420.60
  6. Step 6: Final answer
    x = 70,472.81

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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.