Home / 85,784.51-118,387.34-47,543.25

Finding the Fourth Proportional to 85,784.51, 118,387.34 and 47,543.25

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Solution

The fourth proportional to 85,784.51, 118,387.34 and 47,543.25 is: 65,612.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,784.51 : 118,387.34 = 47,543.25 : x
  2. Step 2: Convert to fraction form
    85,784.51/118,387.34 = 47,543.25/x
  3. Step 3: Cross multiply
    85,784.51x = 118,387.34 × 47,543.25
  4. Step 4: Simplify right side
    85,784.51x = 5,628,518,664.74
  5. Step 5: Solve for x
    x = 5,628,518,664.74/85,784.51
  6. Step 6: Final answer
    x = 65,612.30

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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.