Home / 76,140.23-104,885.70-64,773.30

Finding the Fourth Proportional to 76,140.23, 104,885.70 and 64,773.30

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Solution

The fourth proportional to 76,140.23, 104,885.70 and 64,773.30 is: 89,227.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,140.23 : 104,885.70 = 64,773.30 : x
  2. Step 2: Convert to fraction form
    76,140.23/104,885.70 = 64,773.30/x
  3. Step 3: Cross multiply
    76,140.23x = 104,885.70 × 64,773.30
  4. Step 4: Simplify right side
    76,140.23x = 6,793,792,911.81
  5. Step 5: Solve for x
    x = 6,793,792,911.81/76,140.23
  6. Step 6: Final answer
    x = 89,227.38

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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.