Home / 85,916.83-128,822.31-29,743.87

Finding the Fourth Proportional to 85,916.83, 128,822.31 and 29,743.87

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Solution

The fourth proportional to 85,916.83, 128,822.31 and 29,743.87 is: 44,597.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,916.83 : 128,822.31 = 29,743.87 : x
  2. Step 2: Convert to fraction form
    85,916.83/128,822.31 = 29,743.87/x
  3. Step 3: Cross multiply
    85,916.83x = 128,822.31 × 29,743.87
  4. Step 4: Simplify right side
    85,916.83x = 3,831,674,041.74
  5. Step 5: Solve for x
    x = 3,831,674,041.74/85,916.83
  6. Step 6: Final answer
    x = 44,597.48

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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.