Home / 76,030.70-104,920.50-42,038.29

Finding the Fourth Proportional to 76,030.70, 104,920.50 and 42,038.29

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Solution

The fourth proportional to 76,030.70, 104,920.50 and 42,038.29 is: 58,011.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,030.70 : 104,920.50 = 42,038.29 : x
  2. Step 2: Convert to fraction form
    76,030.70/104,920.50 = 42,038.29/x
  3. Step 3: Cross multiply
    76,030.70x = 104,920.50 × 42,038.29
  4. Step 4: Simplify right side
    76,030.70x = 4,410,677,671.15
  5. Step 5: Solve for x
    x = 4,410,677,671.15/76,030.70
  6. Step 6: Final answer
    x = 58,011.80

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1.5x scale

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.