Home / 72,099.10-99,486.93-40,263.94

Finding the Fourth Proportional to 72,099.10, 99,486.93 and 40,263.94

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Solution

The fourth proportional to 72,099.10, 99,486.93 and 40,263.94 is: 55,558.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,099.10 : 99,486.93 = 40,263.94 : x
  2. Step 2: Convert to fraction form
    72,099.10/99,486.93 = 40,263.94/x
  3. Step 3: Cross multiply
    72,099.10x = 99,486.93 × 40,263.94
  4. Step 4: Simplify right side
    72,099.10x = 4,005,735,780.30
  5. Step 5: Solve for x
    x = 4,005,735,780.30/72,099.10
  6. Step 6: Final answer
    x = 55,558.75

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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.