Home / 66,027.34-99,031.29-21,658.78

Finding the Fourth Proportional to 66,027.34, 99,031.29 and 21,658.78

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Solution

The fourth proportional to 66,027.34, 99,031.29 and 21,658.78 is: 32,484.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,027.34 : 99,031.29 = 21,658.78 : x
  2. Step 2: Convert to fraction form
    66,027.34/99,031.29 = 21,658.78/x
  3. Step 3: Cross multiply
    66,027.34x = 99,031.29 × 21,658.78
  4. Step 4: Simplify right side
    66,027.34x = 2,144,896,923.23
  5. Step 5: Solve for x
    x = 2,144,896,923.23/66,027.34
  6. Step 6: Final answer
    x = 32,484.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.