Home / 99,075.72-136,721.40-56,051.97

Finding the Fourth Proportional to 99,075.72, 136,721.40 and 56,051.97

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Solution

The fourth proportional to 99,075.72, 136,721.40 and 56,051.97 is: 77,349.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,075.72 : 136,721.40 = 56,051.97 : x
  2. Step 2: Convert to fraction form
    99,075.72/136,721.40 = 56,051.97/x
  3. Step 3: Cross multiply
    99,075.72x = 136,721.40 × 56,051.97
  4. Step 4: Simplify right side
    99,075.72x = 7,663,503,811.16
  5. Step 5: Solve for x
    x = 7,663,503,811.16/99,075.72
  6. Step 6: Final answer
    x = 77,349.97

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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.