Home / 99,018.64-136,642.91-56,577.07

Finding the Fourth Proportional to 99,018.64, 136,642.91 and 56,577.07

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Solution

The fourth proportional to 99,018.64, 136,642.91 and 56,577.07 is: 78,074.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,018.64 : 136,642.91 = 56,577.07 : x
  2. Step 2: Convert to fraction form
    99,018.64/136,642.91 = 56,577.07/x
  3. Step 3: Cross multiply
    99,018.64x = 136,642.91 × 56,577.07
  4. Step 4: Simplify right side
    99,018.64x = 7,730,855,484.07
  5. Step 5: Solve for x
    x = 7,730,855,484.07/99,018.64
  6. Step 6: Final answer
    x = 78,074.75

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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.