Home / 81,512.95-112,492.52-45,701.23

Finding the Fourth Proportional to 81,512.95, 112,492.52 and 45,701.23

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Solution

The fourth proportional to 81,512.95, 112,492.52 and 45,701.23 is: 63,070.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,512.95 : 112,492.52 = 45,701.23 : x
  2. Step 2: Convert to fraction form
    81,512.95/112,492.52 = 45,701.23/x
  3. Step 3: Cross multiply
    81,512.95x = 112,492.52 × 45,701.23
  4. Step 4: Simplify right side
    81,512.95x = 5,141,046,529.80
  5. Step 5: Solve for x
    x = 5,141,046,529.80/81,512.95
  6. Step 6: Final answer
    x = 63,070.30

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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.