Home / 78,353.63-117,577.14-28,437.62

Finding the Fourth Proportional to 78,353.63, 117,577.14 and 28,437.62

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Solution

The fourth proportional to 78,353.63, 117,577.14 and 28,437.62 is: 42,673.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,353.63 : 117,577.14 = 28,437.62 : x
  2. Step 2: Convert to fraction form
    78,353.63/117,577.14 = 28,437.62/x
  3. Step 3: Cross multiply
    78,353.63x = 117,577.14 × 28,437.62
  4. Step 4: Simplify right side
    78,353.63x = 3,343,614,028.01
  5. Step 5: Solve for x
    x = 3,343,614,028.01/78,353.63
  6. Step 6: Final answer
    x = 42,673.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.