Home / 56,609.15-78,038.30-39,560.47

Finding the Fourth Proportional to 56,609.15, 78,038.30 and 39,560.47

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Solution

The fourth proportional to 56,609.15, 78,038.30 and 39,560.47 is: 54,535.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,609.15 : 78,038.30 = 39,560.47 : x
  2. Step 2: Convert to fraction form
    56,609.15/78,038.30 = 39,560.47/x
  3. Step 3: Cross multiply
    56,609.15x = 78,038.30 × 39,560.47
  4. Step 4: Simplify right side
    56,609.15x = 3,087,231,433.10
  5. Step 5: Solve for x
    x = 3,087,231,433.10/56,609.15
  6. Step 6: Final answer
    x = 54,535.91

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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.