Home / 77,026.60-115,482.30-42,005.80

Finding the Fourth Proportional to 77,026.60, 115,482.30 and 42,005.80

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Solution

The fourth proportional to 77,026.60, 115,482.30 and 42,005.80 is: 62,977.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,026.60 : 115,482.30 = 42,005.80 : x
  2. Step 2: Convert to fraction form
    77,026.60/115,482.30 = 42,005.80/x
  3. Step 3: Cross multiply
    77,026.60x = 115,482.30 × 42,005.80
  4. Step 4: Simplify right side
    77,026.60x = 4,850,926,397.34
  5. Step 5: Solve for x
    x = 4,850,926,397.34/77,026.60
  6. Step 6: Final answer
    x = 62,977.29

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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.