Home / 74,177.51-102,356.80-42,340.25

Finding the Fourth Proportional to 74,177.51, 102,356.80 and 42,340.25

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Solution

The fourth proportional to 74,177.51, 102,356.80 and 42,340.25 is: 58,424.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,177.51 : 102,356.80 = 42,340.25 : x
  2. Step 2: Convert to fraction form
    74,177.51/102,356.80 = 42,340.25/x
  3. Step 3: Cross multiply
    74,177.51x = 102,356.80 × 42,340.25
  4. Step 4: Simplify right side
    74,177.51x = 4,333,812,651.24
  5. Step 5: Solve for x
    x = 4,333,812,651.24/74,177.51
  6. Step 6: Final answer
    x = 58,424.89

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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.