Home / 89,881.40-134,822.10-56,493.20

Finding the Fourth Proportional to 89,881.40, 134,822.10 and 56,493.20

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Solution

The fourth proportional to 89,881.40, 134,822.10 and 56,493.20 is: 84,739.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,881.40 : 134,822.10 = 56,493.20 : x
  2. Step 2: Convert to fraction form
    89,881.40/134,822.10 = 56,493.20/x
  3. Step 3: Cross multiply
    89,881.40x = 134,822.10 × 56,493.20
  4. Step 4: Simplify right side
    89,881.40x = 7,616,531,859.72
  5. Step 5: Solve for x
    x = 7,616,531,859.72/89,881.40
  6. Step 6: Final answer
    x = 84,739.80

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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.