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Finding the Fourth Proportional to 97,807.86, 134,943.30 and 54,780.93

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Solution

The fourth proportional to 97,807.86, 134,943.30 and 54,780.93 is: 75,580.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,807.86 : 134,943.30 = 54,780.93 : x
  2. Step 2: Convert to fraction form
    97,807.86/134,943.30 = 54,780.93/x
  3. Step 3: Cross multiply
    97,807.86x = 134,943.30 × 54,780.93
  4. Step 4: Simplify right side
    97,807.86x = 7,392,319,471.27
  5. Step 5: Solve for x
    x = 7,392,319,471.27/97,807.86
  6. Step 6: Final answer
    x = 75,580.01

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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.