Home / 48,619.40-72,734.70-42,117.80

Finding the Fourth Proportional to 48,619.40, 72,734.70 and 42,117.80

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Solution

The fourth proportional to 48,619.40, 72,734.70 and 42,117.80 is: 63,008.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,619.40 : 72,734.70 = 42,117.80 : x
  2. Step 2: Convert to fraction form
    48,619.40/72,734.70 = 42,117.80/x
  3. Step 3: Cross multiply
    48,619.40x = 72,734.70 × 42,117.80
  4. Step 4: Simplify right side
    48,619.40x = 3,063,425,547.66
  5. Step 5: Solve for x
    x = 3,063,425,547.66/48,619.40
  6. Step 6: Final answer
    x = 63,008.30

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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.