Home / 85,675.88-118,269.78-64,460.36

Finding the Fourth Proportional to 85,675.88, 118,269.78 and 64,460.36

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Solution

The fourth proportional to 85,675.88, 118,269.78 and 64,460.36 is: 88,983.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,675.88 : 118,269.78 = 64,460.36 : x
  2. Step 2: Convert to fraction form
    85,675.88/118,269.78 = 64,460.36/x
  3. Step 3: Cross multiply
    85,675.88x = 118,269.78 × 64,460.36
  4. Step 4: Simplify right side
    85,675.88x = 7,623,712,595.92
  5. Step 5: Solve for x
    x = 7,623,712,595.92/85,675.88
  6. Step 6: Final answer
    x = 88,983.18

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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.