Home / 85,842.05-118,463.47-47,603.21

Finding the Fourth Proportional to 85,842.05, 118,463.47 and 47,603.21

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Solution

The fourth proportional to 85,842.05, 118,463.47 and 47,603.21 is: 65,693.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,842.05 : 118,463.47 = 47,603.21 : x
  2. Step 2: Convert to fraction form
    85,842.05/118,463.47 = 47,603.21/x
  3. Step 3: Cross multiply
    85,842.05x = 118,463.47 × 47,603.21
  4. Step 4: Simplify right side
    85,842.05x = 5,639,241,528.65
  5. Step 5: Solve for x
    x = 5,639,241,528.65/85,842.05
  6. Step 6: Final answer
    x = 65,693.23

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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.