Home / 64,432.80-88,920.18-36,140.31

Finding the Fourth Proportional to 64,432.80, 88,920.18 and 36,140.31

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Solution

The fourth proportional to 64,432.80, 88,920.18 and 36,140.31 is: 49,875.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,432.80 : 88,920.18 = 36,140.31 : x
  2. Step 2: Convert to fraction form
    64,432.80/88,920.18 = 36,140.31/x
  3. Step 3: Cross multiply
    64,432.80x = 88,920.18 × 36,140.31
  4. Step 4: Simplify right side
    64,432.80x = 3,213,602,870.46
  5. Step 5: Solve for x
    x = 3,213,602,870.46/64,432.80
  6. Step 6: Final answer
    x = 49,875.26

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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.