Home / 86,763.11-129,909.88-56,702.46

Finding the Fourth Proportional to 86,763.11, 129,909.88 and 56,702.46

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Solution

The fourth proportional to 86,763.11, 129,909.88 and 56,702.46 is: 84,900.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,763.11 : 129,909.88 = 56,702.46 : x
  2. Step 2: Convert to fraction form
    86,763.11/129,909.88 = 56,702.46/x
  3. Step 3: Cross multiply
    86,763.11x = 129,909.88 × 56,702.46
  4. Step 4: Simplify right side
    86,763.11x = 7,366,209,774.30
  5. Step 5: Solve for x
    x = 7,366,209,774.30/86,763.11
  6. Step 6: Final answer
    x = 84,900.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.