Home / 99,075.48-136,690.83-56,603.94

Finding the Fourth Proportional to 99,075.48, 136,690.83 and 56,603.94

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Solution

The fourth proportional to 99,075.48, 136,690.83 and 56,603.94 is: 78,094.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,075.48 : 136,690.83 = 56,603.94 : x
  2. Step 2: Convert to fraction form
    99,075.48/136,690.83 = 56,603.94/x
  3. Step 3: Cross multiply
    99,075.48x = 136,690.83 × 56,603.94
  4. Step 4: Simplify right side
    99,075.48x = 7,737,239,539.87
  5. Step 5: Solve for x
    x = 7,737,239,539.87/99,075.48
  6. Step 6: Final answer
    x = 78,094.39

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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.