Home / 56,172.41-77,518.06-30,678.98

Finding the Fourth Proportional to 56,172.41, 77,518.06 and 30,678.98

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Solution

The fourth proportional to 56,172.41, 77,518.06 and 30,678.98 is: 42,337.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,172.41 : 77,518.06 = 30,678.98 : x
  2. Step 2: Convert to fraction form
    56,172.41/77,518.06 = 30,678.98/x
  3. Step 3: Cross multiply
    56,172.41x = 77,518.06 × 30,678.98
  4. Step 4: Simplify right side
    56,172.41x = 2,378,174,548.09
  5. Step 5: Solve for x
    x = 2,378,174,548.09/56,172.41
  6. Step 6: Final answer
    x = 42,337.06

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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.