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Finding the Fourth Proportional to 77,607.68, 107,079.91 and 45,323.98

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Solution

The fourth proportional to 77,607.68, 107,079.91 and 45,323.98 is: 62,536.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,607.68 : 107,079.91 = 45,323.98 : x
  2. Step 2: Convert to fraction form
    77,607.68/107,079.91 = 45,323.98/x
  3. Step 3: Cross multiply
    77,607.68x = 107,079.91 × 45,323.98
  4. Step 4: Simplify right side
    77,607.68x = 4,853,286,937.22
  5. Step 5: Solve for x
    x = 4,853,286,937.22/77,607.68
  6. Step 6: Final answer
    x = 62,536.17

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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.