Home / 81,113.36-111,925.37-45,298.81

Finding the Fourth Proportional to 81,113.36, 111,925.37 and 45,298.81

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Solution

The fourth proportional to 81,113.36, 111,925.37 and 45,298.81 is: 62,506.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,113.36 : 111,925.37 = 45,298.81 : x
  2. Step 2: Convert to fraction form
    81,113.36/111,925.37 = 45,298.81/x
  3. Step 3: Cross multiply
    81,113.36x = 111,925.37 × 45,298.81
  4. Step 4: Simplify right side
    81,113.36x = 5,070,085,903.24
  5. Step 5: Solve for x
    x = 5,070,085,903.24/81,113.36
  6. Step 6: Final answer
    x = 62,506.17

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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.