Home / 101,020.57-139,398.87-58,574.50

Finding the Fourth Proportional to 101,020.57, 139,398.87 and 58,574.50

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Solution

The fourth proportional to 101,020.57, 139,398.87 and 58,574.50 is: 80,827.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,020.57 : 139,398.87 = 58,574.50 : x
  2. Step 2: Convert to fraction form
    101,020.57/139,398.87 = 58,574.50/x
  3. Step 3: Cross multiply
    101,020.57x = 139,398.87 × 58,574.50
  4. Step 4: Simplify right side
    101,020.57x = 8,165,219,110.82
  5. Step 5: Solve for x
    x = 8,165,219,110.82/101,020.57
  6. Step 6: Final answer
    x = 80,827.29

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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.