Home / 74,985.84-103,480.56-43,154.16

Finding the Fourth Proportional to 74,985.84, 103,480.56 and 43,154.16

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Solution

The fourth proportional to 74,985.84, 103,480.56 and 43,154.16 is: 59,552.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,985.84 : 103,480.56 = 43,154.16 : x
  2. Step 2: Convert to fraction form
    74,985.84/103,480.56 = 43,154.16/x
  3. Step 3: Cross multiply
    74,985.84x = 103,480.56 × 43,154.16
  4. Step 4: Simplify right side
    74,985.84x = 4,465,616,643.13
  5. Step 5: Solve for x
    x = 4,465,616,643.13/74,985.84
  6. Step 6: Final answer
    x = 59,552.80

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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.