Home / 99,031.75-136,664.04-56,590.18

Finding the Fourth Proportional to 99,031.75, 136,664.04 and 56,590.18

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Solution

The fourth proportional to 99,031.75, 136,664.04 and 56,590.18 is: 78,094.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,031.75 : 136,664.04 = 56,590.18 : x
  2. Step 2: Convert to fraction form
    99,031.75/136,664.04 = 56,590.18/x
  3. Step 3: Cross multiply
    99,031.75x = 136,664.04 × 56,590.18
  4. Step 4: Simplify right side
    99,031.75x = 7,733,842,623.13
  5. Step 5: Solve for x
    x = 7,733,842,623.13/99,031.75
  6. Step 6: Final answer
    x = 78,094.58

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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.