Home / 99,632.53-137,486.02-56,031.60

Finding the Fourth Proportional to 99,632.53, 137,486.02 and 56,031.60

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Solution

The fourth proportional to 99,632.53, 137,486.02 and 56,031.60 is: 77,319.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,632.53 : 137,486.02 = 56,031.60 : x
  2. Step 2: Convert to fraction form
    99,632.53/137,486.02 = 56,031.60/x
  3. Step 3: Cross multiply
    99,632.53x = 137,486.02 × 56,031.60
  4. Step 4: Simplify right side
    99,632.53x = 7,703,561,678.23
  5. Step 5: Solve for x
    x = 7,703,561,678.23/99,632.53
  6. Step 6: Final answer
    x = 77,319.74

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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.