Home / 102,048.78-140,822.94-56,726.67

Finding the Fourth Proportional to 102,048.78, 140,822.94 and 56,726.67

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Solution

The fourth proportional to 102,048.78, 140,822.94 and 56,726.67 is: 78,280.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,048.78 : 140,822.94 = 56,726.67 : x
  2. Step 2: Convert to fraction form
    102,048.78/140,822.94 = 56,726.67/x
  3. Step 3: Cross multiply
    102,048.78x = 140,822.94 × 56,726.67
  4. Step 4: Simplify right side
    102,048.78x = 7,988,416,445.81
  5. Step 5: Solve for x
    x = 7,988,416,445.81/102,048.78
  6. Step 6: Final answer
    x = 78,280.37

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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.