Home / 77,021.07-106,287-42,094.34

Finding the Fourth Proportional to 77,021.07, 106,287 and 42,094.34

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Solution

The fourth proportional to 77,021.07, 106,287 and 42,094.34 is: 58,089.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,021.07 : 106,287 = 42,094.34 : x
  2. Step 2: Convert to fraction form
    77,021.07/106,287 = 42,094.34/x
  3. Step 3: Cross multiply
    77,021.07x = 106,287 × 42,094.34
  4. Step 4: Simplify right side
    77,021.07x = 4,474,081,115.58
  5. Step 5: Solve for x
    x = 4,474,081,115.58/77,021.07
  6. Step 6: Final answer
    x = 58,089.05

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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.