Home / 61,459.12-92,261.58-51,719.68

Finding the Fourth Proportional to 61,459.12, 92,261.58 and 51,719.68

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Solution

The fourth proportional to 61,459.12, 92,261.58 and 51,719.68 is: 77,640.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,459.12 : 92,261.58 = 51,719.68 : x
  2. Step 2: Convert to fraction form
    61,459.12/92,261.58 = 51,719.68/x
  3. Step 3: Cross multiply
    61,459.12x = 92,261.58 × 51,719.68
  4. Step 4: Simplify right side
    61,459.12x = 4,771,739,393.89
  5. Step 5: Solve for x
    x = 4,771,739,393.89/61,459.12
  6. Step 6: Final answer
    x = 77,640.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.