Home / 72,045.18-99,303.38-48,163.14

Finding the Fourth Proportional to 72,045.18, 99,303.38 and 48,163.14

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Solution

The fourth proportional to 72,045.18, 99,303.38 and 48,163.14 is: 66,385.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,045.18 : 99,303.38 = 48,163.14 : x
  2. Step 2: Convert to fraction form
    72,045.18/99,303.38 = 48,163.14/x
  3. Step 3: Cross multiply
    72,045.18x = 99,303.38 × 48,163.14
  4. Step 4: Simplify right side
    72,045.18x = 4,782,762,593.41
  5. Step 5: Solve for x
    x = 4,782,762,593.41/72,045.18
  6. Step 6: Final answer
    x = 66,385.60

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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.