Home / 74,017.90-111,038.51-31,909.95

Finding the Fourth Proportional to 74,017.90, 111,038.51 and 31,909.95

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Solution

The fourth proportional to 74,017.90, 111,038.51 and 31,909.95 is: 47,869.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,017.90 : 111,038.51 = 31,909.95 : x
  2. Step 2: Convert to fraction form
    74,017.90/111,038.51 = 31,909.95/x
  3. Step 3: Cross multiply
    74,017.90x = 111,038.51 × 31,909.95
  4. Step 4: Simplify right side
    74,017.90x = 3,543,233,142.62
  5. Step 5: Solve for x
    x = 3,543,233,142.62/74,017.90
  6. Step 6: Final answer
    x = 47,869.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.