Home / 97,015.17-133,860.77-56,721.13

Finding the Fourth Proportional to 97,015.17, 133,860.77 and 56,721.13

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Solution

The fourth proportional to 97,015.17, 133,860.77 and 56,721.13 is: 78,263.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,015.17 : 133,860.77 = 56,721.13 : x
  2. Step 2: Convert to fraction form
    97,015.17/133,860.77 = 56,721.13/x
  3. Step 3: Cross multiply
    97,015.17x = 133,860.77 × 56,721.13
  4. Step 4: Simplify right side
    97,015.17x = 7,592,733,853.46
  5. Step 5: Solve for x
    x = 7,592,733,853.46/97,015.17
  6. Step 6: Final answer
    x = 78,263.37

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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.