Home / 48,547.13-66,981.93-28,409

Finding the Fourth Proportional to 48,547.13, 66,981.93 and 28,409

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Solution

The fourth proportional to 48,547.13, 66,981.93 and 28,409 is: 39,196.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,547.13 : 66,981.93 = 28,409 : x
  2. Step 2: Convert to fraction form
    48,547.13/66,981.93 = 28,409/x
  3. Step 3: Cross multiply
    48,547.13x = 66,981.93 × 28,409
  4. Step 4: Simplify right side
    48,547.13x = 1,902,889,649.37
  5. Step 5: Solve for x
    x = 1,902,889,649.37/48,547.13
  6. Step 6: Final answer
    x = 39,196.75

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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.