Home / 85,703.40-118,242.05-49,885.83

Finding the Fourth Proportional to 85,703.40, 118,242.05 and 49,885.83

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Solution

The fourth proportional to 85,703.40, 118,242.05 and 49,885.83 is: 68,825.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,703.40 : 118,242.05 = 49,885.83 : x
  2. Step 2: Convert to fraction form
    85,703.40/118,242.05 = 49,885.83/x
  3. Step 3: Cross multiply
    85,703.40x = 118,242.05 × 49,885.83
  4. Step 4: Simplify right side
    85,703.40x = 5,898,602,555.72
  5. Step 5: Solve for x
    x = 5,898,602,555.72/85,703.40
  6. Step 6: Final answer
    x = 68,825.77

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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.