Home / 56,985.12-78,638.85-33,111.59

Finding the Fourth Proportional to 56,985.12, 78,638.85 and 33,111.59

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Solution

The fourth proportional to 56,985.12, 78,638.85 and 33,111.59 is: 45,693.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,985.12 : 78,638.85 = 33,111.59 : x
  2. Step 2: Convert to fraction form
    56,985.12/78,638.85 = 33,111.59/x
  3. Step 3: Cross multiply
    56,985.12x = 78,638.85 × 33,111.59
  4. Step 4: Simplify right side
    56,985.12x = 2,603,856,966.08
  5. Step 5: Solve for x
    x = 2,603,856,966.08/56,985.12
  6. Step 6: Final answer
    x = 45,693.63

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1.5x scale

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.