Home / 77,932.93-107,547.42-42,122.93

Finding the Fourth Proportional to 77,932.93, 107,547.42 and 42,122.93

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Solution

The fourth proportional to 77,932.93, 107,547.42 and 42,122.93 is: 58,129.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,932.93 : 107,547.42 = 42,122.93 : x
  2. Step 2: Convert to fraction form
    77,932.93/107,547.42 = 42,122.93/x
  3. Step 3: Cross multiply
    77,932.93x = 107,547.42 × 42,122.93
  4. Step 4: Simplify right side
    77,932.93x = 4,530,212,444.34
  5. Step 5: Solve for x
    x = 4,530,212,444.34/77,932.93
  6. Step 6: Final answer
    x = 58,129.63

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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.