Home / 66,160.01-91,315.26-40,688.30

Finding the Fourth Proportional to 66,160.01, 91,315.26 and 40,688.30

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Solution

The fourth proportional to 66,160.01, 91,315.26 and 40,688.30 is: 56,158.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,160.01 : 91,315.26 = 40,688.30 : x
  2. Step 2: Convert to fraction form
    66,160.01/91,315.26 = 40,688.30/x
  3. Step 3: Cross multiply
    66,160.01x = 91,315.26 × 40,688.30
  4. Step 4: Simplify right side
    66,160.01x = 3,715,462,693.46
  5. Step 5: Solve for x
    x = 3,715,462,693.46/66,160.01
  6. Step 6: Final answer
    x = 56,158.74

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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.