Home / 77,271.51-115,907.27-42,192.03

Finding the Fourth Proportional to 77,271.51, 115,907.27 and 42,192.03

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Solution

The fourth proportional to 77,271.51, 115,907.27 and 42,192.03 is: 63,288.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,271.51 : 115,907.27 = 42,192.03 : x
  2. Step 2: Convert to fraction form
    77,271.51/115,907.27 = 42,192.03/x
  3. Step 3: Cross multiply
    77,271.51x = 115,907.27 × 42,192.03
  4. Step 4: Simplify right side
    77,271.51x = 4,890,362,802.10
  5. Step 5: Solve for x
    x = 4,890,362,802.10/77,271.51
  6. Step 6: Final answer
    x = 63,288.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.