Home / 72,870.18-100,558.86-41,038.40

Finding the Fourth Proportional to 72,870.18, 100,558.86 and 41,038.40

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Solution

The fourth proportional to 72,870.18, 100,558.86 and 41,038.40 is: 56,631.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,870.18 : 100,558.86 = 41,038.40 : x
  2. Step 2: Convert to fraction form
    72,870.18/100,558.86 = 41,038.40/x
  3. Step 3: Cross multiply
    72,870.18x = 100,558.86 × 41,038.40
  4. Step 4: Simplify right side
    72,870.18x = 4,126,774,720.22
  5. Step 5: Solve for x
    x = 4,126,774,720.22/72,870.18
  6. Step 6: Final answer
    x = 56,631.87

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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.