Home / 97,429.68-134,438.58-57,128.22

Finding the Fourth Proportional to 97,429.68, 134,438.58 and 57,128.22

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Solution

The fourth proportional to 97,429.68, 134,438.58 and 57,128.22 is: 78,828.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,429.68 : 134,438.58 = 57,128.22 : x
  2. Step 2: Convert to fraction form
    97,429.68/134,438.58 = 57,128.22/x
  3. Step 3: Cross multiply
    97,429.68x = 134,438.58 × 57,128.22
  4. Step 4: Simplify right side
    97,429.68x = 7,680,236,774.73
  5. Step 5: Solve for x
    x = 7,680,236,774.73/97,429.68
  6. Step 6: Final answer
    x = 78,828.51

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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.