Home / 85,518.96-118,058.24-53,705.40

Finding the Fourth Proportional to 85,518.96, 118,058.24 and 53,705.40

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Solution

The fourth proportional to 85,518.96, 118,058.24 and 53,705.40 is: 74,139.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,518.96 : 118,058.24 = 53,705.40 : x
  2. Step 2: Convert to fraction form
    85,518.96/118,058.24 = 53,705.40/x
  3. Step 3: Cross multiply
    85,518.96x = 118,058.24 × 53,705.40
  4. Step 4: Simplify right side
    85,518.96x = 6,340,364,733.97
  5. Step 5: Solve for x
    x = 6,340,364,733.97/85,518.96
  6. Step 6: Final answer
    x = 74,139.87

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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.