Home / 78,215.45-117,312.77-22,060.07

Finding the Fourth Proportional to 78,215.45, 117,312.77 and 22,060.07

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Solution

The fourth proportional to 78,215.45, 117,312.77 and 22,060.07 is: 33,087.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,215.45 : 117,312.77 = 22,060.07 : x
  2. Step 2: Convert to fraction form
    78,215.45/117,312.77 = 22,060.07/x
  3. Step 3: Cross multiply
    78,215.45x = 117,312.77 × 22,060.07
  4. Step 4: Simplify right side
    78,215.45x = 2,587,927,807.79
  5. Step 5: Solve for x
    x = 2,587,927,807.79/78,215.45
  6. Step 6: Final answer
    x = 33,087.17

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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.