Home / 83,416.51-125,124.77-21,087.01

Finding the Fourth Proportional to 83,416.51, 125,124.77 and 21,087.01

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Solution

The fourth proportional to 83,416.51, 125,124.77 and 21,087.01 is: 31,630.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,416.51 : 125,124.77 = 21,087.01 : x
  2. Step 2: Convert to fraction form
    83,416.51/125,124.77 = 21,087.01/x
  3. Step 3: Cross multiply
    83,416.51x = 125,124.77 × 21,087.01
  4. Step 4: Simplify right side
    83,416.51x = 2,638,507,276.24
  5. Step 5: Solve for x
    x = 2,638,507,276.24/83,416.51
  6. Step 6: Final answer
    x = 31,630.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.