Home / 76,030.86-113,971.80-42,312.95

Finding the Fourth Proportional to 76,030.86, 113,971.80 and 42,312.95

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Solution

The fourth proportional to 76,030.86, 113,971.80 and 42,312.95 is: 63,427.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,030.86 : 113,971.80 = 42,312.95 : x
  2. Step 2: Convert to fraction form
    76,030.86/113,971.80 = 42,312.95/x
  3. Step 3: Cross multiply
    76,030.86x = 113,971.80 × 42,312.95
  4. Step 4: Simplify right side
    76,030.86x = 4,822,483,074.81
  5. Step 5: Solve for x
    x = 4,822,483,074.81/76,030.86
  6. Step 6: Final answer
    x = 63,427.97

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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.