Home / 85,827.25-118,448.58-47,590.60

Finding the Fourth Proportional to 85,827.25, 118,448.58 and 47,590.60

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Solution

The fourth proportional to 85,827.25, 118,448.58 and 47,590.60 is: 65,678.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,827.25 : 118,448.58 = 47,590.60 : x
  2. Step 2: Convert to fraction form
    85,827.25/118,448.58 = 47,590.60/x
  3. Step 3: Cross multiply
    85,827.25x = 118,448.58 × 47,590.60
  4. Step 4: Simplify right side
    85,827.25x = 5,637,038,991.35
  5. Step 5: Solve for x
    x = 5,637,038,991.35/85,827.25
  6. Step 6: Final answer
    x = 65,678.90

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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.