Home / 85,699.42-118,210.08-53,812.96

Finding the Fourth Proportional to 85,699.42, 118,210.08 and 53,812.96

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Solution

The fourth proportional to 85,699.42, 118,210.08 and 53,812.96 is: 74,227.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,699.42 : 118,210.08 = 53,812.96 : x
  2. Step 2: Convert to fraction form
    85,699.42/118,210.08 = 53,812.96/x
  3. Step 3: Cross multiply
    85,699.42x = 118,210.08 × 53,812.96
  4. Step 4: Simplify right side
    85,699.42x = 6,361,234,212.91
  5. Step 5: Solve for x
    x = 6,361,234,212.91/85,699.42
  6. Step 6: Final answer
    x = 74,227.27

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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.