Home / 65,316.41-89,935.50-57,203.30

Finding the Fourth Proportional to 65,316.41, 89,935.50 and 57,203.30

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Solution

The fourth proportional to 65,316.41, 89,935.50 and 57,203.30 is: 78,764.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,316.41 : 89,935.50 = 57,203.30 : x
  2. Step 2: Convert to fraction form
    65,316.41/89,935.50 = 57,203.30/x
  3. Step 3: Cross multiply
    65,316.41x = 89,935.50 × 57,203.30
  4. Step 4: Simplify right side
    65,316.41x = 5,144,606,937.47
  5. Step 5: Solve for x
    x = 5,144,606,937.47/65,316.41
  6. Step 6: Final answer
    x = 78,764.39

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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.