Home / 74,430.82-112,142.70-67,323.28

Finding the Fourth Proportional to 74,430.82, 112,142.70 and 67,323.28

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Solution

The fourth proportional to 74,430.82, 112,142.70 and 67,323.28 is: 101,433.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,430.82 : 112,142.70 = 67,323.28 : x
  2. Step 2: Convert to fraction form
    74,430.82/112,142.70 = 67,323.28/x
  3. Step 3: Cross multiply
    74,430.82x = 112,142.70 × 67,323.28
  4. Step 4: Simplify right side
    74,430.82x = 7,549,814,392.06
  5. Step 5: Solve for x
    x = 7,549,814,392.06/74,430.82
  6. Step 6: Final answer
    x = 101,433.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.