Home / 86,150.77-118,888.13-47,909.48

Finding the Fourth Proportional to 86,150.77, 118,888.13 and 47,909.48

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Solution

The fourth proportional to 86,150.77, 118,888.13 and 47,909.48 is: 66,115.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,150.77 : 118,888.13 = 47,909.48 : x
  2. Step 2: Convert to fraction form
    86,150.77/118,888.13 = 47,909.48/x
  3. Step 3: Cross multiply
    86,150.77x = 118,888.13 × 47,909.48
  4. Step 4: Simplify right side
    86,150.77x = 5,695,868,411.06
  5. Step 5: Solve for x
    x = 5,695,868,411.06/86,150.77
  6. Step 6: Final answer
    x = 66,115.12

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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.