Home / 74,430.48-102,713.32-40,895.76

Finding the Fourth Proportional to 74,430.48, 102,713.32 and 40,895.76

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Solution

The fourth proportional to 74,430.48, 102,713.32 and 40,895.76 is: 56,435.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,430.48 : 102,713.32 = 40,895.76 : x
  2. Step 2: Convert to fraction form
    74,430.48/102,713.32 = 40,895.76/x
  3. Step 3: Cross multiply
    74,430.48x = 102,713.32 × 40,895.76
  4. Step 4: Simplify right side
    74,430.48x = 4,200,539,283.52
  5. Step 5: Solve for x
    x = 4,200,539,283.52/74,430.48
  6. Step 6: Final answer
    x = 56,435.74

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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.