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Finding the Fourth Proportional to 86,703.51, 119,663.55 and 50,913.12

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Solution

The fourth proportional to 86,703.51, 119,663.55 and 50,913.12 is: 70,267.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,703.51 : 119,663.55 = 50,913.12 : x
  2. Step 2: Convert to fraction form
    86,703.51/119,663.55 = 50,913.12/x
  3. Step 3: Cross multiply
    86,703.51x = 119,663.55 × 50,913.12
  4. Step 4: Simplify right side
    86,703.51x = 6,092,444,680.78
  5. Step 5: Solve for x
    x = 6,092,444,680.78/86,703.51
  6. Step 6: Final answer
    x = 70,267.57

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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.