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Finding the Fourth Proportional to 70,569.08, 105,885.96 and 30,600.32

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Solution

The fourth proportional to 70,569.08, 105,885.96 and 30,600.32 is: 45,914.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,569.08 : 105,885.96 = 30,600.32 : x
  2. Step 2: Convert to fraction form
    70,569.08/105,885.96 = 30,600.32/x
  3. Step 3: Cross multiply
    70,569.08x = 105,885.96 × 30,600.32
  4. Step 4: Simplify right side
    70,569.08x = 3,240,144,259.51
  5. Step 5: Solve for x
    x = 3,240,144,259.51/70,569.08
  6. Step 6: Final answer
    x = 45,914.50

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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.