Home / 72,027.72-99,381.74-43,339.68

Finding the Fourth Proportional to 72,027.72, 99,381.74 and 43,339.68

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Solution

The fourth proportional to 72,027.72, 99,381.74 and 43,339.68 is: 59,798.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,027.72 : 99,381.74 = 43,339.68 : x
  2. Step 2: Convert to fraction form
    72,027.72/99,381.74 = 43,339.68/x
  3. Step 3: Cross multiply
    72,027.72x = 99,381.74 × 43,339.68
  4. Step 4: Simplify right side
    72,027.72x = 4,307,172,592.74
  5. Step 5: Solve for x
    x = 4,307,172,592.74/72,027.72
  6. Step 6: Final answer
    x = 59,798.82

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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.