Home / 74,867.61-103,319.56-42,606.86

Finding the Fourth Proportional to 74,867.61, 103,319.56 and 42,606.86

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Solution

The fourth proportional to 74,867.61, 103,319.56 and 42,606.86 is: 58,798.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,867.61 : 103,319.56 = 42,606.86 : x
  2. Step 2: Convert to fraction form
    74,867.61/103,319.56 = 42,606.86/x
  3. Step 3: Cross multiply
    74,867.61x = 103,319.56 × 42,606.86
  4. Step 4: Simplify right side
    74,867.61x = 4,402,121,405.07
  5. Step 5: Solve for x
    x = 4,402,121,405.07/74,867.61
  6. Step 6: Final answer
    x = 58,798.74

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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.