Home / 99,029.63-136,657.08-53,706.78

Finding the Fourth Proportional to 99,029.63, 136,657.08 and 53,706.78

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Solution

The fourth proportional to 99,029.63, 136,657.08 and 53,706.78 is: 74,113.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,029.63 : 136,657.08 = 53,706.78 : x
  2. Step 2: Convert to fraction form
    99,029.63/136,657.08 = 53,706.78/x
  3. Step 3: Cross multiply
    99,029.63x = 136,657.08 × 53,706.78
  4. Step 4: Simplify right side
    99,029.63x = 7,339,411,731.00
  5. Step 5: Solve for x
    x = 7,339,411,731.00/99,029.63
  6. Step 6: Final answer
    x = 74,113.29

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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.