Home / 83,528.31-115,355.95-64,206.17

Finding the Fourth Proportional to 83,528.31, 115,355.95 and 64,206.17

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Solution

The fourth proportional to 83,528.31, 115,355.95 and 64,206.17 is: 88,671.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,528.31 : 115,355.95 = 64,206.17 : x
  2. Step 2: Convert to fraction form
    83,528.31/115,355.95 = 64,206.17/x
  3. Step 3: Cross multiply
    83,528.31x = 115,355.95 × 64,206.17
  4. Step 4: Simplify right side
    83,528.31x = 7,406,563,431.50
  5. Step 5: Solve for x
    x = 7,406,563,431.50/83,528.31
  6. Step 6: Final answer
    x = 88,671.29

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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.