Home / 72,036.23-107,903.65-57,919.82

Finding the Fourth Proportional to 72,036.23, 107,903.65 and 57,919.82

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Solution

The fourth proportional to 72,036.23, 107,903.65 and 57,919.82 is: 86,758.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,036.23 : 107,903.65 = 57,919.82 : x
  2. Step 2: Convert to fraction form
    72,036.23/107,903.65 = 57,919.82/x
  3. Step 3: Cross multiply
    72,036.23x = 107,903.65 × 57,919.82
  4. Step 4: Simplify right side
    72,036.23x = 6,249,759,985.34
  5. Step 5: Solve for x
    x = 6,249,759,985.34/72,036.23
  6. Step 6: Final answer
    x = 86,758.57

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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.