Home / 86,804.02-130,172.98-30,633.66

Finding the Fourth Proportional to 86,804.02, 130,172.98 and 30,633.66

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Solution

The fourth proportional to 86,804.02, 130,172.98 and 30,633.66 is: 45,938.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,804.02 : 130,172.98 = 30,633.66 : x
  2. Step 2: Convert to fraction form
    86,804.02/130,172.98 = 30,633.66/x
  3. Step 3: Cross multiply
    86,804.02x = 130,172.98 × 30,633.66
  4. Step 4: Simplify right side
    86,804.02x = 3,987,674,159.64
  5. Step 5: Solve for x
    x = 3,987,674,159.64/86,804.02
  6. Step 6: Final answer
    x = 45,938.82

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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.