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Finding the Fourth Proportional to 64,851.60, 97,277.40 and 39,810.45

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Solution

The fourth proportional to 64,851.60, 97,277.40 and 39,810.45 is: 59,715.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,851.60 : 97,277.40 = 39,810.45 : x
  2. Step 2: Convert to fraction form
    64,851.60/97,277.40 = 39,810.45/x
  3. Step 3: Cross multiply
    64,851.60x = 97,277.40 × 39,810.45
  4. Step 4: Simplify right side
    64,851.60x = 3,872,657,068.83
  5. Step 5: Solve for x
    x = 3,872,657,068.83/64,851.60
  6. Step 6: Final answer
    x = 59,715.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.