Home / 56,928.18-85,368.51-19,480.62

Finding the Fourth Proportional to 56,928.18, 85,368.51 and 19,480.62

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Solution

The fourth proportional to 56,928.18, 85,368.51 and 19,480.62 is: 29,212.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,928.18 : 85,368.51 = 19,480.62 : x
  2. Step 2: Convert to fraction form
    56,928.18/85,368.51 = 19,480.62/x
  3. Step 3: Cross multiply
    56,928.18x = 85,368.51 × 19,480.62
  4. Step 4: Simplify right side
    56,928.18x = 1,663,031,503.28
  5. Step 5: Solve for x
    x = 1,663,031,503.28/56,928.18
  6. Step 6: Final answer
    x = 29,212.80

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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.