Home / 92,778.84-128,033.20-56,467.16

Finding the Fourth Proportional to 92,778.84, 128,033.20 and 56,467.16

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Solution

The fourth proportional to 92,778.84, 128,033.20 and 56,467.16 is: 77,923.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,778.84 : 128,033.20 = 56,467.16 : x
  2. Step 2: Convert to fraction form
    92,778.84/128,033.20 = 56,467.16/x
  3. Step 3: Cross multiply
    92,778.84x = 128,033.20 × 56,467.16
  4. Step 4: Simplify right side
    92,778.84x = 7,229,671,189.71
  5. Step 5: Solve for x
    x = 7,229,671,189.71/92,778.84
  6. Step 6: Final answer
    x = 77,923.71

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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.