Home / 85,631.34-118,098.63-51,632.40

Finding the Fourth Proportional to 85,631.34, 118,098.63 and 51,632.40

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Solution

The fourth proportional to 85,631.34, 118,098.63 and 51,632.40 is: 71,208.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,631.34 : 118,098.63 = 51,632.40 : x
  2. Step 2: Convert to fraction form
    85,631.34/118,098.63 = 51,632.40/x
  3. Step 3: Cross multiply
    85,631.34x = 118,098.63 × 51,632.40
  4. Step 4: Simplify right side
    85,631.34x = 6,097,715,703.61
  5. Step 5: Solve for x
    x = 6,097,715,703.61/85,631.34
  6. Step 6: Final answer
    x = 71,208.93

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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.