Home / 85,780.95-118,374.93-47,018.67

Finding the Fourth Proportional to 85,780.95, 118,374.93 and 47,018.67

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Solution

The fourth proportional to 85,780.95, 118,374.93 and 47,018.67 is: 64,884.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,780.95 : 118,374.93 = 47,018.67 : x
  2. Step 2: Convert to fraction form
    85,780.95/118,374.93 = 47,018.67/x
  3. Step 3: Cross multiply
    85,780.95x = 118,374.93 × 47,018.67
  4. Step 4: Simplify right side
    85,780.95x = 5,565,831,769.94
  5. Step 5: Solve for x
    x = 5,565,831,769.94/85,780.95
  6. Step 6: Final answer
    x = 64,884.24

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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.