Home / 99,028.66-136,656.99-56,587.20

Finding the Fourth Proportional to 99,028.66, 136,656.99 and 56,587.20

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Solution

The fourth proportional to 99,028.66, 136,656.99 and 56,587.20 is: 78,088.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,028.66 : 136,656.99 = 56,587.20 : x
  2. Step 2: Convert to fraction form
    99,028.66/136,656.99 = 56,587.20/x
  3. Step 3: Cross multiply
    99,028.66x = 136,656.99 × 56,587.20
  4. Step 4: Simplify right side
    99,028.66x = 7,733,036,424.53
  5. Step 5: Solve for x
    x = 7,733,036,424.53/99,028.66
  6. Step 6: Final answer
    x = 78,088.87

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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.