Home / 85,155.71-117,516.02-47,429.96

Finding the Fourth Proportional to 85,155.71, 117,516.02 and 47,429.96

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Solution

The fourth proportional to 85,155.71, 117,516.02 and 47,429.96 is: 65,453.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,155.71 : 117,516.02 = 47,429.96 : x
  2. Step 2: Convert to fraction form
    85,155.71/117,516.02 = 47,429.96/x
  3. Step 3: Cross multiply
    85,155.71x = 117,516.02 × 47,429.96
  4. Step 4: Simplify right side
    85,155.71x = 5,573,779,303.23
  5. Step 5: Solve for x
    x = 5,573,779,303.23/85,155.71
  6. Step 6: Final answer
    x = 65,453.97

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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.