Home / 86,070.66-118,777.32-47,830.08

Finding the Fourth Proportional to 86,070.66, 118,777.32 and 47,830.08

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Solution

The fourth proportional to 86,070.66, 118,777.32 and 47,830.08 is: 66,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,070.66 : 118,777.32 = 47,830.08 : x
  2. Step 2: Convert to fraction form
    86,070.66/118,777.32 = 47,830.08/x
  3. Step 3: Cross multiply
    86,070.66x = 118,777.32 × 47,830.08
  4. Step 4: Simplify right side
    86,070.66x = 5,681,128,717.79
  5. Step 5: Solve for x
    x = 5,681,128,717.79/86,070.66
  6. Step 6: Final answer
    x = 66,005.40

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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.