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Finding the Fourth Proportional to 86,703.80, 130,055.70 and 44,713.40

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Solution

The fourth proportional to 86,703.80, 130,055.70 and 44,713.40 is: 67,070.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,703.80 : 130,055.70 = 44,713.40 : x
  2. Step 2: Convert to fraction form
    86,703.80/130,055.70 = 44,713.40/x
  3. Step 3: Cross multiply
    86,703.80x = 130,055.70 × 44,713.40
  4. Step 4: Simplify right side
    86,703.80x = 5,815,232,536.38
  5. Step 5: Solve for x
    x = 5,815,232,536.38/86,703.80
  6. Step 6: Final answer
    x = 67,070.10

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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.