Home / 66,813.98-92,180.40-38,113.02

Finding the Fourth Proportional to 66,813.98, 92,180.40 and 38,113.02

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Solution

The fourth proportional to 66,813.98, 92,180.40 and 38,113.02 is: 52,582.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,813.98 : 92,180.40 = 38,113.02 : x
  2. Step 2: Convert to fraction form
    66,813.98/92,180.40 = 38,113.02/x
  3. Step 3: Cross multiply
    66,813.98x = 92,180.40 × 38,113.02
  4. Step 4: Simplify right side
    66,813.98x = 3,513,273,428.81
  5. Step 5: Solve for x
    x = 3,513,273,428.81/66,813.98
  6. Step 6: Final answer
    x = 52,582.91

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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.