Home / 85,770.48-118,421.04-53,554.16

Finding the Fourth Proportional to 85,770.48, 118,421.04 and 53,554.16

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Solution

The fourth proportional to 85,770.48, 118,421.04 and 53,554.16 is: 73,940.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,770.48 : 118,421.04 = 53,554.16 : x
  2. Step 2: Convert to fraction form
    85,770.48/118,421.04 = 53,554.16/x
  3. Step 3: Cross multiply
    85,770.48x = 118,421.04 × 53,554.16
  4. Step 4: Simplify right side
    85,770.48x = 6,341,939,323.53
  5. Step 5: Solve for x
    x = 6,341,939,323.53/85,770.48
  6. Step 6: Final answer
    x = 73,940.82

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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.