Home / 42,705.36-64,058.11-13,123.01

Finding the Fourth Proportional to 42,705.36, 64,058.11 and 13,123.01

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Solution

The fourth proportional to 42,705.36, 64,058.11 and 13,123.01 is: 19,684.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,705.36 : 64,058.11 = 13,123.01 : x
  2. Step 2: Convert to fraction form
    42,705.36/64,058.11 = 13,123.01/x
  3. Step 3: Cross multiply
    42,705.36x = 64,058.11 × 13,123.01
  4. Step 4: Simplify right side
    42,705.36x = 840,635,345.45
  5. Step 5: Solve for x
    x = 840,635,345.45/42,705.36
  6. Step 6: Final answer
    x = 19,684.54

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1.5x scale

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.