Home / 77,972.55-107,602.04-42,162.48

Finding the Fourth Proportional to 77,972.55, 107,602.04 and 42,162.48

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Solution

The fourth proportional to 77,972.55, 107,602.04 and 42,162.48 is: 58,184.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,972.55 : 107,602.04 = 42,162.48 : x
  2. Step 2: Convert to fraction form
    77,972.55/107,602.04 = 42,162.48/x
  3. Step 3: Cross multiply
    77,972.55x = 107,602.04 × 42,162.48
  4. Step 4: Simplify right side
    77,972.55x = 4,536,768,859.46
  5. Step 5: Solve for x
    x = 4,536,768,859.46/77,972.55
  6. Step 6: Final answer
    x = 58,184.18

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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.