Home / 74,972.36-103,458.80-43,142.40

Finding the Fourth Proportional to 74,972.36, 103,458.80 and 43,142.40

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Solution

The fourth proportional to 74,972.36, 103,458.80 and 43,142.40 is: 59,534.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,972.36 : 103,458.80 = 43,142.40 : x
  2. Step 2: Convert to fraction form
    74,972.36/103,458.80 = 43,142.40/x
  3. Step 3: Cross multiply
    74,972.36x = 103,458.80 × 43,142.40
  4. Step 4: Simplify right side
    74,972.36x = 4,463,460,933.12
  5. Step 5: Solve for x
    x = 4,463,460,933.12/74,972.36
  6. Step 6: Final answer
    x = 59,534.75

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1.5x scale

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.