Home / 64,726.56-89,312.22-40,866.12

Finding the Fourth Proportional to 64,726.56, 89,312.22 and 40,866.12

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Solution

The fourth proportional to 64,726.56, 89,312.22 and 40,866.12 is: 56,388.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,726.56 : 89,312.22 = 40,866.12 : x
  2. Step 2: Convert to fraction form
    64,726.56/89,312.22 = 40,866.12/x
  3. Step 3: Cross multiply
    64,726.56x = 89,312.22 × 40,866.12
  4. Step 4: Simplify right side
    64,726.56x = 3,649,843,899.99
  5. Step 5: Solve for x
    x = 3,649,843,899.99/64,726.56
  6. Step 6: Final answer
    x = 56,388.66

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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.