Home / 84,830.08-117,013.60-60,988.96

Finding the Fourth Proportional to 84,830.08, 117,013.60 and 60,988.96

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Solution

The fourth proportional to 84,830.08, 117,013.60 and 60,988.96 is: 84,127.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,830.08 : 117,013.60 = 60,988.96 : x
  2. Step 2: Convert to fraction form
    84,830.08/117,013.60 = 60,988.96/x
  3. Step 3: Cross multiply
    84,830.08x = 117,013.60 × 60,988.96
  4. Step 4: Simplify right side
    84,830.08x = 7,136,537,769.86
  5. Step 5: Solve for x
    x = 7,136,537,769.86/84,830.08
  6. Step 6: Final answer
    x = 84,127.44

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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.