Home / 61,810.64-85,267.28-39,111.36

Finding the Fourth Proportional to 61,810.64, 85,267.28 and 39,111.36

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Solution

The fourth proportional to 61,810.64, 85,267.28 and 39,111.36 is: 53,953.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,810.64 : 85,267.28 = 39,111.36 : x
  2. Step 2: Convert to fraction form
    61,810.64/85,267.28 = 39,111.36/x
  3. Step 3: Cross multiply
    61,810.64x = 85,267.28 × 39,111.36
  4. Step 4: Simplify right side
    61,810.64x = 3,334,919,284.30
  5. Step 5: Solve for x
    x = 3,334,919,284.30/61,810.64
  6. Step 6: Final answer
    x = 53,953.81

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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.