Home / 77,580.40-107,058.08-47,416.16

Finding the Fourth Proportional to 77,580.40, 107,058.08 and 47,416.16

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Solution

The fourth proportional to 77,580.40, 107,058.08 and 47,416.16 is: 65,432.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,580.40 : 107,058.08 = 47,416.16 : x
  2. Step 2: Convert to fraction form
    77,580.40/107,058.08 = 47,416.16/x
  3. Step 3: Cross multiply
    77,580.40x = 107,058.08 × 47,416.16
  4. Step 4: Simplify right side
    77,580.40x = 5,076,283,050.57
  5. Step 5: Solve for x
    x = 5,076,283,050.57/77,580.40
  6. Step 6: Final answer
    x = 65,432.55

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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.