Home / 70,816.16-97,726.95-38,985.59

Finding the Fourth Proportional to 70,816.16, 97,726.95 and 38,985.59

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Solution

The fourth proportional to 70,816.16, 97,726.95 and 38,985.59 is: 53,800.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,816.16 : 97,726.95 = 38,985.59 : x
  2. Step 2: Convert to fraction form
    70,816.16/97,726.95 = 38,985.59/x
  3. Step 3: Cross multiply
    70,816.16x = 97,726.95 × 38,985.59
  4. Step 4: Simplify right side
    70,816.16x = 3,809,942,316.02
  5. Step 5: Solve for x
    x = 3,809,942,316.02/70,816.16
  6. Step 6: Final answer
    x = 53,800.47

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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.