Home / 75,705.32-113,558.40-19,541.59

Finding the Fourth Proportional to 75,705.32, 113,558.40 and 19,541.59

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Solution

The fourth proportional to 75,705.32, 113,558.40 and 19,541.59 is: 29,312.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,705.32 : 113,558.40 = 19,541.59 : x
  2. Step 2: Convert to fraction form
    75,705.32/113,558.40 = 19,541.59/x
  3. Step 3: Cross multiply
    75,705.32x = 113,558.40 × 19,541.59
  4. Step 4: Simplify right side
    75,705.32x = 2,219,111,693.86
  5. Step 5: Solve for x
    x = 2,219,111,693.86/75,705.32
  6. Step 6: Final answer
    x = 29,312.49

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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.