Home / 74,386.63-102,655.34-40,853.35

Finding the Fourth Proportional to 74,386.63, 102,655.34 and 40,853.35

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Solution

The fourth proportional to 74,386.63, 102,655.34 and 40,853.35 is: 56,378.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,386.63 : 102,655.34 = 40,853.35 : x
  2. Step 2: Convert to fraction form
    74,386.63/102,655.34 = 40,853.35/x
  3. Step 3: Cross multiply
    74,386.63x = 102,655.34 × 40,853.35
  4. Step 4: Simplify right side
    74,386.63x = 4,193,814,330.12
  5. Step 5: Solve for x
    x = 4,193,814,330.12/74,386.63
  6. Step 6: Final answer
    x = 56,378.60

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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.