Home / 85,557.12-118,073.32-51,576.40

Finding the Fourth Proportional to 85,557.12, 118,073.32 and 51,576.40

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Solution

The fourth proportional to 85,557.12, 118,073.32 and 51,576.40 is: 71,178.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,557.12 : 118,073.32 = 51,576.40 : x
  2. Step 2: Convert to fraction form
    85,557.12/118,073.32 = 51,576.40/x
  3. Step 3: Cross multiply
    85,557.12x = 118,073.32 × 51,576.40
  4. Step 4: Simplify right side
    85,557.12x = 6,089,796,781.65
  5. Step 5: Solve for x
    x = 6,089,796,781.65/85,557.12
  6. Step 6: Final answer
    x = 71,178.14

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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.