Home / 74,781.78-112,075.07-30,356.52

Finding the Fourth Proportional to 74,781.78, 112,075.07 and 30,356.52

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Solution

The fourth proportional to 74,781.78, 112,075.07 and 30,356.52 is: 45,495.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,781.78 : 112,075.07 = 30,356.52 : x
  2. Step 2: Convert to fraction form
    74,781.78/112,075.07 = 30,356.52/x
  3. Step 3: Cross multiply
    74,781.78x = 112,075.07 × 30,356.52
  4. Step 4: Simplify right side
    74,781.78x = 3,402,208,952.17
  5. Step 5: Solve for x
    x = 3,402,208,952.17/74,781.78
  6. Step 6: Final answer
    x = 45,495.16

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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.