Home / 72,288.97-99,746.88-45,412.45

Finding the Fourth Proportional to 72,288.97, 99,746.88 and 45,412.45

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Solution

The fourth proportional to 72,288.97, 99,746.88 and 45,412.45 is: 62,661.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,288.97 : 99,746.88 = 45,412.45 : x
  2. Step 2: Convert to fraction form
    72,288.97/99,746.88 = 45,412.45/x
  3. Step 3: Cross multiply
    72,288.97x = 99,746.88 × 45,412.45
  4. Step 4: Simplify right side
    72,288.97x = 4,529,749,951.29
  5. Step 5: Solve for x
    x = 4,529,749,951.29/72,288.97
  6. Step 6: Final answer
    x = 62,661.70

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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.