Home / 98,999.45-136,620.21-53,677.32

Finding the Fourth Proportional to 98,999.45, 136,620.21 and 53,677.32

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Solution

The fourth proportional to 98,999.45, 136,620.21 and 53,677.32 is: 74,075.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,999.45 : 136,620.21 = 53,677.32 : x
  2. Step 2: Convert to fraction form
    98,999.45/136,620.21 = 53,677.32/x
  3. Step 3: Cross multiply
    98,999.45x = 136,620.21 × 53,677.32
  4. Step 4: Simplify right side
    98,999.45x = 7,333,406,730.64
  5. Step 5: Solve for x
    x = 7,333,406,730.64/98,999.45
  6. Step 6: Final answer
    x = 74,075.23

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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.