Home / 61,385.36-84,654.06-56,803.64

Finding the Fourth Proportional to 61,385.36, 84,654.06 and 56,803.64

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Solution

The fourth proportional to 61,385.36, 84,654.06 and 56,803.64 is: 78,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,385.36 : 84,654.06 = 56,803.64 : x
  2. Step 2: Convert to fraction form
    61,385.36/84,654.06 = 56,803.64/x
  3. Step 3: Cross multiply
    61,385.36x = 84,654.06 × 56,803.64
  4. Step 4: Simplify right side
    61,385.36x = 4,808,658,748.78
  5. Step 5: Solve for x
    x = 4,808,658,748.78/61,385.36
  6. Step 6: Final answer
    x = 78,335.60

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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.