Home / 66,856.68-92,209.06-56,818.35

Finding the Fourth Proportional to 66,856.68, 92,209.06 and 56,818.35

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Solution

The fourth proportional to 66,856.68, 92,209.06 and 56,818.35 is: 78,364.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,856.68 : 92,209.06 = 56,818.35 : x
  2. Step 2: Convert to fraction form
    66,856.68/92,209.06 = 56,818.35/x
  3. Step 3: Cross multiply
    66,856.68x = 92,209.06 × 56,818.35
  4. Step 4: Simplify right side
    66,856.68x = 5,239,166,644.25
  5. Step 5: Solve for x
    x = 5,239,166,644.25/66,856.68
  6. Step 6: Final answer
    x = 78,364.15

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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.