Home / 56,215.63-77,445.84-39,188.94

Finding the Fourth Proportional to 56,215.63, 77,445.84 and 39,188.94

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Solution

The fourth proportional to 56,215.63, 77,445.84 and 39,188.94 is: 53,988.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,215.63 : 77,445.84 = 39,188.94 : x
  2. Step 2: Convert to fraction form
    56,215.63/77,445.84 = 39,188.94/x
  3. Step 3: Cross multiply
    56,215.63x = 77,445.84 × 39,188.94
  4. Step 4: Simplify right side
    56,215.63x = 3,035,019,989.78
  5. Step 5: Solve for x
    x = 3,035,019,989.78/56,215.63
  6. Step 6: Final answer
    x = 53,988.90

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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.