Home / 92,995.74-128,348.13-56,718.24

Finding the Fourth Proportional to 92,995.74, 128,348.13 and 56,718.24

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Solution

The fourth proportional to 92,995.74, 128,348.13 and 56,718.24 is: 78,279.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,995.74 : 128,348.13 = 56,718.24 : x
  2. Step 2: Convert to fraction form
    92,995.74/128,348.13 = 56,718.24/x
  3. Step 3: Cross multiply
    92,995.74x = 128,348.13 × 56,718.24
  4. Step 4: Simplify right side
    92,995.74x = 7,279,680,040.89
  5. Step 5: Solve for x
    x = 7,279,680,040.89/92,995.74
  6. Step 6: Final answer
    x = 78,279.72

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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.