Home / 72,039.18-99,295.10-48,157.14

Finding the Fourth Proportional to 72,039.18, 99,295.10 and 48,157.14

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Solution

The fourth proportional to 72,039.18, 99,295.10 and 48,157.14 is: 66,377.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,039.18 : 99,295.10 = 48,157.14 : x
  2. Step 2: Convert to fraction form
    72,039.18/99,295.10 = 48,157.14/x
  3. Step 3: Cross multiply
    72,039.18x = 99,295.10 × 48,157.14
  4. Step 4: Simplify right side
    72,039.18x = 4,781,768,032.01
  5. Step 5: Solve for x
    x = 4,781,768,032.01/72,039.18
  6. Step 6: Final answer
    x = 66,377.32

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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.