Home / 64,139.18-88,454.57-53,419.64

Finding the Fourth Proportional to 64,139.18, 88,454.57 and 53,419.64

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Solution

The fourth proportional to 64,139.18, 88,454.57 and 53,419.64 is: 73,671.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,139.18 : 88,454.57 = 53,419.64 : x
  2. Step 2: Convert to fraction form
    64,139.18/88,454.57 = 53,419.64/x
  3. Step 3: Cross multiply
    64,139.18x = 88,454.57 × 53,419.64
  4. Step 4: Simplify right side
    64,139.18x = 4,725,210,576.38
  5. Step 5: Solve for x
    x = 4,725,210,576.38/64,139.18
  6. Step 6: Final answer
    x = 73,671.21

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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.