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Finding the Fourth Proportional to 74,862.66, 103,312.35 and 42,595.50

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Solution

The fourth proportional to 74,862.66, 103,312.35 and 42,595.50 is: 58,782.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,862.66 : 103,312.35 = 42,595.50 : x
  2. Step 2: Convert to fraction form
    74,862.66/103,312.35 = 42,595.50/x
  3. Step 3: Cross multiply
    74,862.66x = 103,312.35 × 42,595.50
  4. Step 4: Simplify right side
    74,862.66x = 4,400,641,204.43
  5. Step 5: Solve for x
    x = 4,400,641,204.43/74,862.66
  6. Step 6: Final answer
    x = 58,782.86

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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.