Home / 74,349.12-102,602.16-42,519.36

Finding the Fourth Proportional to 74,349.12, 102,602.16 and 42,519.36

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Solution

The fourth proportional to 74,349.12, 102,602.16 and 42,519.36 is: 58,676.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,349.12 : 102,602.16 = 42,519.36 : x
  2. Step 2: Convert to fraction form
    74,349.12/102,602.16 = 42,519.36/x
  3. Step 3: Cross multiply
    74,349.12x = 102,602.16 × 42,519.36
  4. Step 4: Simplify right side
    74,349.12x = 4,362,578,177.82
  5. Step 5: Solve for x
    x = 4,362,578,177.82/74,349.12
  6. Step 6: Final answer
    x = 58,676.93

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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.