Home / 56,123.14-77,448.80-30,630.01

Finding the Fourth Proportional to 56,123.14, 77,448.80 and 30,630.01

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Solution

The fourth proportional to 56,123.14, 77,448.80 and 30,630.01 is: 42,268.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,123.14 : 77,448.80 = 30,630.01 : x
  2. Step 2: Convert to fraction form
    56,123.14/77,448.80 = 30,630.01/x
  3. Step 3: Cross multiply
    56,123.14x = 77,448.80 × 30,630.01
  4. Step 4: Simplify right side
    56,123.14x = 2,372,257,518.49
  5. Step 5: Solve for x
    x = 2,372,257,518.49/56,123.14
  6. Step 6: Final answer
    x = 42,268.80

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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.