Home / 74,309.19-102,543.43-42,480.13

Finding the Fourth Proportional to 74,309.19, 102,543.43 and 42,480.13

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Solution

The fourth proportional to 74,309.19, 102,543.43 and 42,480.13 is: 58,620.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,309.19 : 102,543.43 = 42,480.13 : x
  2. Step 2: Convert to fraction form
    74,309.19/102,543.43 = 42,480.13/x
  3. Step 3: Cross multiply
    74,309.19x = 102,543.43 × 42,480.13
  4. Step 4: Simplify right side
    74,309.19x = 4,356,058,237.05
  5. Step 5: Solve for x
    x = 4,356,058,237.05/74,309.19
  6. Step 6: Final answer
    x = 58,620.72

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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.