Home / 92,178.28-127,215.60-56,392.12

Finding the Fourth Proportional to 92,178.28, 127,215.60 and 56,392.12

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Solution

The fourth proportional to 92,178.28, 127,215.60 and 56,392.12 is: 77,826.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,178.28 : 127,215.60 = 56,392.12 : x
  2. Step 2: Convert to fraction form
    92,178.28/127,215.60 = 56,392.12/x
  3. Step 3: Cross multiply
    92,178.28x = 127,215.60 × 56,392.12
  4. Step 4: Simplify right side
    92,178.28x = 7,173,957,381.07
  5. Step 5: Solve for x
    x = 7,173,957,381.07/92,178.28
  6. Step 6: Final answer
    x = 77,826.98

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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.