Home / 64,302.32-88,780.53-40,140.08

Finding the Fourth Proportional to 64,302.32, 88,780.53 and 40,140.08

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Solution

The fourth proportional to 64,302.32, 88,780.53 and 40,140.08 is: 55,420.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,302.32 : 88,780.53 = 40,140.08 : x
  2. Step 2: Convert to fraction form
    64,302.32/88,780.53 = 40,140.08/x
  3. Step 3: Cross multiply
    64,302.32x = 88,780.53 × 40,140.08
  4. Step 4: Simplify right side
    64,302.32x = 3,563,657,132.74
  5. Step 5: Solve for x
    x = 3,563,657,132.74/64,302.32
  6. Step 6: Final answer
    x = 55,420.36

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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.