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Finding the Fourth Proportional to 60,420.37, 83,346.52 and 56,143.95

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Solution

The fourth proportional to 60,420.37, 83,346.52 and 56,143.95 is: 77,447.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,420.37 : 83,346.52 = 56,143.95 : x
  2. Step 2: Convert to fraction form
    60,420.37/83,346.52 = 56,143.95/x
  3. Step 3: Cross multiply
    60,420.37x = 83,346.52 × 56,143.95
  4. Step 4: Simplify right side
    60,420.37x = 4,679,402,154.10
  5. Step 5: Solve for x
    x = 4,679,402,154.10/60,420.37
  6. Step 6: Final answer
    x = 77,447.43

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.