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Finding the Fourth Proportional to 99,031.50, 136,663.70 and 56,589.93

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Solution

The fourth proportional to 99,031.50, 136,663.70 and 56,589.93 is: 78,094.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,031.50 : 136,663.70 = 56,589.93 : x
  2. Step 2: Convert to fraction form
    99,031.50/136,663.70 = 56,589.93/x
  3. Step 3: Cross multiply
    99,031.50x = 136,663.70 × 56,589.93
  4. Step 4: Simplify right side
    99,031.50x = 7,733,788,933.59
  5. Step 5: Solve for x
    x = 7,733,788,933.59/99,031.50
  6. Step 6: Final answer
    x = 78,094.23

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