Home / 83,675.15-115,492.21-51,417.58

Finding the Fourth Proportional to 83,675.15, 115,492.21 and 51,417.58

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Solution

The fourth proportional to 83,675.15, 115,492.21 and 51,417.58 is: 70,968.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,675.15 : 115,492.21 = 51,417.58 : x
  2. Step 2: Convert to fraction form
    83,675.15/115,492.21 = 51,417.58/x
  3. Step 3: Cross multiply
    83,675.15x = 115,492.21 × 51,417.58
  4. Step 4: Simplify right side
    83,675.15x = 5,938,330,089.50
  5. Step 5: Solve for x
    x = 5,938,330,089.50/83,675.15
  6. Step 6: Final answer
    x = 70,968.86

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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.