Home / 99,060.47-136,703.45-56,619.91

Finding the Fourth Proportional to 99,060.47, 136,703.45 and 56,619.91

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Solution

The fourth proportional to 99,060.47, 136,703.45 and 56,619.91 is: 78,135.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,060.47 : 136,703.45 = 56,619.91 : x
  2. Step 2: Convert to fraction form
    99,060.47/136,703.45 = 56,619.91/x
  3. Step 3: Cross multiply
    99,060.47x = 136,703.45 × 56,619.91
  4. Step 4: Simplify right side
    99,060.47x = 7,740,137,029.63
  5. Step 5: Solve for x
    x = 7,740,137,029.63/99,060.47
  6. Step 6: Final answer
    x = 78,135.48

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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.