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Finding the Fourth Proportional to 77,801.61, 107,365.08 and 43,810.16

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Solution

The fourth proportional to 77,801.61, 107,365.08 and 43,810.16 is: 60,457.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,801.61 : 107,365.08 = 43,810.16 : x
  2. Step 2: Convert to fraction form
    77,801.61/107,365.08 = 43,810.16/x
  3. Step 3: Cross multiply
    77,801.61x = 107,365.08 × 43,810.16
  4. Step 4: Simplify right side
    77,801.61x = 4,703,681,114.16
  5. Step 5: Solve for x
    x = 4,703,681,114.16/77,801.61
  6. Step 6: Final answer
    x = 60,457.38

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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.