Home / 88,014.51-121,428.14-57,816.09

Finding the Fourth Proportional to 88,014.51, 121,428.14 and 57,816.09

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Solution

The fourth proportional to 88,014.51, 121,428.14 and 57,816.09 is: 79,765.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,014.51 : 121,428.14 = 57,816.09 : x
  2. Step 2: Convert to fraction form
    88,014.51/121,428.14 = 57,816.09/x
  3. Step 3: Cross multiply
    88,014.51x = 121,428.14 × 57,816.09
  4. Step 4: Simplify right side
    88,014.51x = 7,020,499,981.69
  5. Step 5: Solve for x
    x = 7,020,499,981.69/88,014.51
  6. Step 6: Final answer
    x = 79,765.26

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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.