Home / 64,143.36-88,430.40-47,416.32

Finding the Fourth Proportional to 64,143.36, 88,430.40 and 47,416.32

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Solution

The fourth proportional to 64,143.36, 88,430.40 and 47,416.32 is: 65,369.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,143.36 : 88,430.40 = 47,416.32 : x
  2. Step 2: Convert to fraction form
    64,143.36/88,430.40 = 47,416.32/x
  3. Step 3: Cross multiply
    64,143.36x = 88,430.40 × 47,416.32
  4. Step 4: Simplify right side
    64,143.36x = 4,193,044,144.13
  5. Step 5: Solve for x
    x = 4,193,044,144.13/64,143.36
  6. Step 6: Final answer
    x = 65,369.89

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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.