Home / 74,973.36-103,460.18-43,143.40

Finding the Fourth Proportional to 74,973.36, 103,460.18 and 43,143.40

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Solution

The fourth proportional to 74,973.36, 103,460.18 and 43,143.40 is: 59,536.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,973.36 : 103,460.18 = 43,143.40 : x
  2. Step 2: Convert to fraction form
    74,973.36/103,460.18 = 43,143.40/x
  3. Step 3: Cross multiply
    74,973.36x = 103,460.18 × 43,143.40
  4. Step 4: Simplify right side
    74,973.36x = 4,463,623,929.81
  5. Step 5: Solve for x
    x = 4,463,623,929.81/74,973.36
  6. Step 6: Final answer
    x = 59,536.13

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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.