Home / 72,066.48-99,423.14-48,155.28

Finding the Fourth Proportional to 72,066.48, 99,423.14 and 48,155.28

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Solution

The fourth proportional to 72,066.48, 99,423.14 and 48,155.28 is: 66,435.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,066.48 : 99,423.14 = 48,155.28 : x
  2. Step 2: Convert to fraction form
    72,066.48/99,423.14 = 48,155.28/x
  3. Step 3: Cross multiply
    72,066.48x = 99,423.14 × 48,155.28
  4. Step 4: Simplify right side
    72,066.48x = 4,787,749,145.18
  5. Step 5: Solve for x
    x = 4,787,749,145.18/72,066.48
  6. Step 6: Final answer
    x = 66,435.17

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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.