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Finding the Fourth Proportional to 101,039.84, 139,444.40 and 56,326.88

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Solution

The fourth proportional to 101,039.84, 139,444.40 and 56,326.88 is: 77,736.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,039.84 : 139,444.40 = 56,326.88 : x
  2. Step 2: Convert to fraction form
    101,039.84/139,444.40 = 56,326.88/x
  3. Step 3: Cross multiply
    101,039.84x = 139,444.40 × 56,326.88
  4. Step 4: Simplify right side
    101,039.84x = 7,854,467,985.47
  5. Step 5: Solve for x
    x = 7,854,467,985.47/101,039.84
  6. Step 6: Final answer
    x = 77,736.35

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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.