Home / 85,904.79-118,552.68-53,658.50

Finding the Fourth Proportional to 85,904.79, 118,552.68 and 53,658.50

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Solution

The fourth proportional to 85,904.79, 118,552.68 and 53,658.50 is: 74,051.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,904.79 : 118,552.68 = 53,658.50 : x
  2. Step 2: Convert to fraction form
    85,904.79/118,552.68 = 53,658.50/x
  3. Step 3: Cross multiply
    85,904.79x = 118,552.68 × 53,658.50
  4. Step 4: Simplify right side
    85,904.79x = 6,361,358,827.50
  5. Step 5: Solve for x
    x = 6,361,358,827.50/85,904.79
  6. Step 6: Final answer
    x = 74,051.27

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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.