Home / 56,190.92-84,298.70-21,130.58

Finding the Fourth Proportional to 56,190.92, 84,298.70 and 21,130.58

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Solution

The fourth proportional to 56,190.92, 84,298.70 and 21,130.58 is: 31,700.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,190.92 : 84,298.70 = 21,130.58 : x
  2. Step 2: Convert to fraction form
    56,190.92/84,298.70 = 21,130.58/x
  3. Step 3: Cross multiply
    56,190.92x = 84,298.70 × 21,130.58
  4. Step 4: Simplify right side
    56,190.92x = 1,781,279,897.10
  5. Step 5: Solve for x
    x = 1,781,279,897.10/56,190.92
  6. Step 6: Final answer
    x = 31,700.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.