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Finding the Fourth Proportional to 45,905, 63,359.70 and 28,014.80

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Solution

The fourth proportional to 45,905, 63,359.70 and 28,014.80 is: 38,667.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,905 : 63,359.70 = 28,014.80 : x
  2. Step 2: Convert to fraction form
    45,905/63,359.70 = 28,014.80/x
  3. Step 3: Cross multiply
    45,905x = 63,359.70 × 28,014.80
  4. Step 4: Simplify right side
    45,905x = 1,775,009,323.56
  5. Step 5: Solve for x
    x = 1,775,009,323.56/45,905
  6. Step 6: Final answer
    x = 38,667.01

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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.