Home / 45,870.72-63,319.60-30,757.86

Finding the Fourth Proportional to 45,870.72, 63,319.60 and 30,757.86

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Solution

The fourth proportional to 45,870.72, 63,319.60 and 30,757.86 is: 42,457.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,870.72 : 63,319.60 = 30,757.86 : x
  2. Step 2: Convert to fraction form
    45,870.72/63,319.60 = 30,757.86/x
  3. Step 3: Cross multiply
    45,870.72x = 63,319.60 × 30,757.86
  4. Step 4: Simplify right side
    45,870.72x = 1,947,575,392.06
  5. Step 5: Solve for x
    x = 1,947,575,392.06/45,870.72
  6. Step 6: Final answer
    x = 42,457.92

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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.