Home / 99,095.47-136,712.82-56,631.22

Finding the Fourth Proportional to 99,095.47, 136,712.82 and 56,631.22

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Solution

The fourth proportional to 99,095.47, 136,712.82 and 56,631.22 is: 78,128.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,095.47 : 136,712.82 = 56,631.22 : x
  2. Step 2: Convert to fraction form
    99,095.47/136,712.82 = 56,631.22/x
  3. Step 3: Cross multiply
    99,095.47x = 136,712.82 × 56,631.22
  4. Step 4: Simplify right side
    99,095.47x = 7,742,213,786.24
  5. Step 5: Solve for x
    x = 7,742,213,786.24/99,095.47
  6. Step 6: Final answer
    x = 78,128.84

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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.