Home / 78,547.48-117,803.46-22,386.38

Finding the Fourth Proportional to 78,547.48, 117,803.46 and 22,386.38

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Solution

The fourth proportional to 78,547.48, 117,803.46 and 22,386.38 is: 33,574.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,547.48 : 117,803.46 = 22,386.38 : x
  2. Step 2: Convert to fraction form
    78,547.48/117,803.46 = 22,386.38/x
  3. Step 3: Cross multiply
    78,547.48x = 117,803.46 × 22,386.38
  4. Step 4: Simplify right side
    78,547.48x = 2,637,193,020.87
  5. Step 5: Solve for x
    x = 2,637,193,020.87/78,547.48
  6. Step 6: Final answer
    x = 33,574.51

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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.