Home / 85,931.44-128,866.40-29,756.46

Finding the Fourth Proportional to 85,931.44, 128,866.40 and 29,756.46

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Solution

The fourth proportional to 85,931.44, 128,866.40 and 29,756.46 is: 44,624.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,931.44 : 128,866.40 = 29,756.46 : x
  2. Step 2: Convert to fraction form
    85,931.44/128,866.40 = 29,756.46/x
  3. Step 3: Cross multiply
    85,931.44x = 128,866.40 × 29,756.46
  4. Step 4: Simplify right side
    85,931.44x = 3,834,607,876.94
  5. Step 5: Solve for x
    x = 3,834,607,876.94/85,931.44
  6. Step 6: Final answer
    x = 44,624.04

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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.