Home / 64,715.60-89,335.08-43,507.16

Finding the Fourth Proportional to 64,715.60, 89,335.08 and 43,507.16

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Solution

The fourth proportional to 64,715.60, 89,335.08 and 43,507.16 is: 60,058.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,715.60 : 89,335.08 = 43,507.16 : x
  2. Step 2: Convert to fraction form
    64,715.60/89,335.08 = 43,507.16/x
  3. Step 3: Cross multiply
    64,715.60x = 89,335.08 × 43,507.16
  4. Step 4: Simplify right side
    64,715.60x = 3,886,715,401.64
  5. Step 5: Solve for x
    x = 3,886,715,401.64/64,715.60
  6. Step 6: Final answer
    x = 60,058.40

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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.