Home / 99,112.77-136,775.69-53,790.74

Finding the Fourth Proportional to 99,112.77, 136,775.69 and 53,790.74

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Solution

The fourth proportional to 99,112.77, 136,775.69 and 53,790.74 is: 74,231.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,112.77 : 136,775.69 = 53,790.74 : x
  2. Step 2: Convert to fraction form
    99,112.77/136,775.69 = 53,790.74/x
  3. Step 3: Cross multiply
    99,112.77x = 136,775.69 × 53,790.74
  4. Step 4: Simplify right side
    99,112.77x = 7,357,264,626.28
  5. Step 5: Solve for x
    x = 7,357,264,626.28/99,112.77
  6. Step 6: Final answer
    x = 74,231.25

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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.