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Finding the Fourth Proportional to 56,178.60, 77,463.48 and 45,937.80

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Solution

The fourth proportional to 56,178.60, 77,463.48 and 45,937.80 is: 63,342.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,178.60 : 77,463.48 = 45,937.80 : x
  2. Step 2: Convert to fraction form
    56,178.60/77,463.48 = 45,937.80/x
  3. Step 3: Cross multiply
    56,178.60x = 77,463.48 × 45,937.80
  4. Step 4: Simplify right side
    56,178.60x = 3,558,501,851.54
  5. Step 5: Solve for x
    x = 3,558,501,851.54/56,178.60
  6. Step 6: Final answer
    x = 63,342.66

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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.