Home / 85,614.18-118,139.51-57,962.59

Finding the Fourth Proportional to 85,614.18, 118,139.51 and 57,962.59

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Solution

The fourth proportional to 85,614.18, 118,139.51 and 57,962.59 is: 79,982.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,614.18 : 118,139.51 = 57,962.59 : x
  2. Step 2: Convert to fraction form
    85,614.18/118,139.51 = 57,962.59/x
  3. Step 3: Cross multiply
    85,614.18x = 118,139.51 × 57,962.59
  4. Step 4: Simplify right side
    85,614.18x = 6,847,671,830.49
  5. Step 5: Solve for x
    x = 6,847,671,830.49/85,614.18
  6. Step 6: Final answer
    x = 79,982.92

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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.