Home / 64,432.16-88,919.43-40,247.45

Finding the Fourth Proportional to 64,432.16, 88,919.43 and 40,247.45

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Solution

The fourth proportional to 64,432.16, 88,919.43 and 40,247.45 is: 55,543.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,432.16 : 88,919.43 = 40,247.45 : x
  2. Step 2: Convert to fraction form
    64,432.16/88,919.43 = 40,247.45/x
  3. Step 3: Cross multiply
    64,432.16x = 88,919.43 × 40,247.45
  4. Step 4: Simplify right side
    64,432.16x = 3,578,779,868.36
  5. Step 5: Solve for x
    x = 3,578,779,868.36/64,432.16
  6. Step 6: Final answer
    x = 55,543.38

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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.