Home / 72,985.87-100,723.49-46,118.57

Finding the Fourth Proportional to 72,985.87, 100,723.49 and 46,118.57

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Solution

The fourth proportional to 72,985.87, 100,723.49 and 46,118.57 is: 63,645.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,985.87 : 100,723.49 = 46,118.57 : x
  2. Step 2: Convert to fraction form
    72,985.87/100,723.49 = 46,118.57/x
  3. Step 3: Cross multiply
    72,985.87x = 100,723.49 × 46,118.57
  4. Step 4: Simplify right side
    72,985.87x = 4,645,223,547.94
  5. Step 5: Solve for x
    x = 4,645,223,547.94/72,985.87
  6. Step 6: Final answer
    x = 63,645.52

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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.