Home / 78,030.48-107,634.60-57,592.20

Finding the Fourth Proportional to 78,030.48, 107,634.60 and 57,592.20

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Solution

The fourth proportional to 78,030.48, 107,634.60 and 57,592.20 is: 79,442.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,030.48 : 107,634.60 = 57,592.20 : x
  2. Step 2: Convert to fraction form
    78,030.48/107,634.60 = 57,592.20/x
  3. Step 3: Cross multiply
    78,030.48x = 107,634.60 × 57,592.20
  4. Step 4: Simplify right side
    78,030.48x = 6,198,913,410.12
  5. Step 5: Solve for x
    x = 6,198,913,410.12/78,030.48
  6. Step 6: Final answer
    x = 79,442.21

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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.