Home / 85,798.23-118,360.60-57,131.11

Finding the Fourth Proportional to 85,798.23, 118,360.60 and 57,131.11

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Solution

The fourth proportional to 85,798.23, 118,360.60 and 57,131.11 is: 78,813.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,798.23 : 118,360.60 = 57,131.11 : x
  2. Step 2: Convert to fraction form
    85,798.23/118,360.60 = 57,131.11/x
  3. Step 3: Cross multiply
    85,798.23x = 118,360.60 × 57,131.11
  4. Step 4: Simplify right side
    85,798.23x = 6,762,072,458.27
  5. Step 5: Solve for x
    x = 6,762,072,458.27/85,798.23
  6. Step 6: Final answer
    x = 78,813.66

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1.5x scale

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.